JP2008266236A - Cyclic amine derivative or salt thereof - Google Patents

Cyclic amine derivative or salt thereof Download PDF

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JP2008266236A
JP2008266236A JP2007113318A JP2007113318A JP2008266236A JP 2008266236 A JP2008266236 A JP 2008266236A JP 2007113318 A JP2007113318 A JP 2007113318A JP 2007113318 A JP2007113318 A JP 2007113318A JP 2008266236 A JP2008266236 A JP 2008266236A
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chlorophenylthio
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ethyl acetate
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Shigeki Seto
茂樹 瀬戸
Kyoko Okada
京子 岡田
Takayuki Sawada
孝之 澤田
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Kyorin Pharmaceutical Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a therapeutic, preventive or suppressing agent for a disease associated with abnormal production of IL-6 by discovering a novel compound having an IL-6 signaling inhibitory action. <P>SOLUTION: A compound represented by formula (1) (wherein X represents a single bond or the like; Y<SP>1</SP>-Y<SP>2</SP>represents -CH<SB>2</SB>NHC(O)CH<SB>2</SB>N= or the like; Z represents a single bond or the like; R<SP>1a</SP>, R<SP>1b</SP>, R<SP>1c</SP>, R<SP>2a</SP>, R<SP>2b</SP>and R<SP>2c</SP>each represents a hydrogen atom or the like; and R<SP>3</SP>and R<SP>4</SP>each represents a hydrogen atom or the like, provided that R<SP>1a</SP>and R<SP>2a</SP>are not both hydrogen atoms), and its derivative are disclosed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、環状アミン誘導体又はその塩に関する。より詳細には、本発明は、インターロイキン−6(IL−6)シグナル伝達阻害作用を有する環状アミン誘導体又はその塩に関するものである。   The present invention relates to a cyclic amine derivative or a salt thereof. More specifically, the present invention relates to a cyclic amine derivative or a salt thereof having an interleukin-6 (IL-6) signaling inhibitory action.

サイトカインは、細胞間の情報伝達を担うタンパク質性因子である。サイトカインが持つ細胞増殖、分化などの生理活性は、細胞膜上のサイトカイン受容体とサイトカインが結合することによって発揮される。サイトカインの異常産生は、癌、炎症、アレルギー、自己免疫疾患等にも深く関与していることが報告されている(非特許文献1)。サイトカインの一つであるIL−6は多機能性サイトカインであり、1)活性化B細胞の抗体産生を誘導する、2)ハイブリドーマ、プラズマサイトーマ、ミエローマの増殖を誘導する、3)T細胞に作用し、増殖及び細胞傷害性T細胞への分化を誘導する、4)造血幹細胞を刺激し、多分化能コロニーを形成させる、5)肝細胞に作用し、炎症や組織の損傷に対する生体反応に起因する急性期タンパク質の合成を誘導する、6)骨髄性白血病細胞株の増殖を抑制し、マクロファージへの分化を誘導する、7)神経細胞の分化を誘導する等の機能を有することが知られている。従って、IL−6活性の制御の破綻は様々な重篤な疾患を引き起こす要因となる。そのような疾患の例として、関節リウマチ、血管炎症候群、二次性アミロイドーシス、キャッスルマン病、間質性肺炎(リンパ球性間質性肺炎;LIP)、増殖性糸球体腎炎、炎症性腸疾患(クローン病)、腎移植に伴う拒絶、骨粗鬆症、エイズ、IL−6産生腫瘍(多発性骨髄腫、腎癌、子宮頸癌、肺癌、心房粘液腫)及び悪液質等が挙げられる。   Cytokines are proteinaceous factors responsible for information transmission between cells. Physiological activities such as cell proliferation and differentiation possessed by cytokines are exhibited by the binding of cytokine receptors and cytokines on the cell membrane. It has been reported that abnormal production of cytokines is deeply involved in cancer, inflammation, allergies, autoimmune diseases and the like (Non-patent Document 1). IL-6, which is one of cytokines, is a multifunctional cytokine, 1) induces antibody production of activated B cells, 2) induces proliferation of hybridomas, plasmacytoma, and myeloma, 3) induces T cells Acts to induce proliferation and differentiation into cytotoxic T cells, 4) stimulates hematopoietic stem cells to form pluripotent colonies, 5) acts on hepatocytes and in response to inflammation and tissue damage It is known to have functions such as inducing the synthesis of the resulting acute phase protein, 6) suppressing the growth of myeloid leukemia cell lines, inducing differentiation into macrophages, and 7) inducing neuronal differentiation. ing. Therefore, failure to control IL-6 activity causes various serious diseases. Examples of such diseases include rheumatoid arthritis, vasculitis syndrome, secondary amyloidosis, Castleman's disease, interstitial pneumonia (lymphocytic interstitial pneumonia; LIP), proliferative glomerulonephritis, inflammatory bowel disease (Crohn's disease), rejection associated with kidney transplantation, osteoporosis, AIDS, IL-6 producing tumors (multiple myeloma, renal cancer, cervical cancer, lung cancer, atrial myxoma) and cachexia.

これまでにIL−6の異常産生に伴う疾患に対して、ヒト型化抗ヒトIL−6受容体抗体(トシリズマブ)によるIL−6の機能阻害が、有効な治療法になることが示されている。しかし、トシリズマブはヒト型化抗体とはいえマウス由来の異種タンパク質を含むため、トシリズマブに対する抗体の出現を否定することはできず、トシリズマブの作用低下及びアナフィラキシー出現の危険性も完全に除外できない。また、トシリズマブは高分子(分子量150kD)であるため、静脈内投与を余儀なくされ、患者の利便性を著しく損なっている。さらにトシリズマブは高額であるため、経済的にも負担がかかる。従って、上記のIL−6の異常産生に伴う疾患の治療、予防又は抑制剤として優れた性質を有する化合物の開発が望まれている。   So far, it has been shown that inhibition of IL-6 function by humanized anti-human IL-6 receptor antibody (tocilizumab) is an effective treatment for diseases associated with abnormal production of IL-6. Yes. However, since tocilizumab contains a mouse-derived heterologous protein even though it is a humanized antibody, the appearance of an antibody against tocilizumab cannot be ruled out, and the risk of reduced action of tocilizumab and the appearance of anaphylaxis cannot be completely excluded. In addition, since tocilizumab is a high molecular weight (molecular weight 150 kD), it is forced to be administered intravenously, which significantly impairs patient convenience. Furthermore, because tocilizumab is expensive, it is economically costly. Therefore, development of a compound having excellent properties as a therapeutic, preventive or inhibitory agent for diseases associated with abnormal production of IL-6 is desired.

現在、IL−6シグナル伝達阻害作用を有する化合物としては、特許文献1記載の下記式(A)で表される化合物や、特許文献2記載の下記式(B)で表される化合物が知られている。

Figure 2008266236
Figure 2008266236
Currently, as a compound having an IL-6 signal transduction inhibiting action, a compound represented by the following formula (A) described in Patent Document 1 and a compound represented by the following formula (B) described in Patent Document 2 are known. ing.
Figure 2008266236
Figure 2008266236

特開2003−183161号明細書JP 2003-183161 A 特開2002−265493号明細書JP 2002-265493 A Kishimoto,T.ら、Science 258巻、p.593−597、1992年Kishimoto, T .; Science 258, p. 593-597, 1992

本発明の目的は、IL−6シグナル伝達阻害作用を有する新規化合物を見出し、IL−6の異常産生に伴う疾患に対する治療、予防又は抑制剤を提供することにある。   An object of the present invention is to find a novel compound having an inhibitory action on IL-6 signaling, and to provide a therapeutic, preventive or suppressive agent for diseases associated with abnormal production of IL-6.

本発明者らは、鋭意研究を行った結果、下記一般式(1)で表される新規環状アミン及びその塩が、IL−6シグナル伝達阻害作用を有することを見出し、本発明を完成した。   As a result of intensive studies, the present inventors have found that a novel cyclic amine represented by the following general formula (1) and a salt thereof have an IL-6 signal transduction inhibitory action, and completed the present invention.

すなわち、本発明は、以下の[1]〜[5]を提供する。
[1]下記一般式(1)で表される化合物又はその塩。

Figure 2008266236
(式中、
Xは、単結合又は−CH−を示し、
−Yは、式
Figure 2008266236
で表される基を示し、
Zは、単結合、−CH−又は−C(O)−を示し、
1a、R1b、R1c、R2a、R2b及びR2cは、同一又は異なって、水素原子、ハロゲン原子又はハロゲン原子で置換されていてもよいC〜Cアルキル基を示し、ただし、R1a及びR2aが同時に水素原子を示すことはなく、
及びRは、同一又は異なって、水素原子又はC〜Cアルキル基を示す。)
[2]Zが−CH−である、上記[1]記載の化合物又はその塩。
[3]Zが−CH−であり、R1aがハロゲン原子であり、R2aが水素原子である、上記[1]記載の化合物又はその塩。
[4]Zが−CH−であり、Xが単結合であり、R1aがハロゲン原子であり、R2aが水素原子であり、
−Yが式
Figure 2008266236
で表される基である、上記[1]記載の化合物又はその塩。
[5]Zが−CH−であり、Xが単結合であり、R1aがハロゲン原子であり、R2aが水素原子であり、
−Yが式
Figure 2008266236
で表される基である、上記[1]記載の化合物又はその塩。 That is, the present invention provides the following [1] to [5].
[1] A compound represented by the following general formula (1) or a salt thereof.
Figure 2008266236
(Where
X represents a single bond or —CH 2 —;
Y 1 -Y 2 is a formula
Figure 2008266236
Represents a group represented by
Z represents a single bond, —CH 2 — or —C (O) —,
R 1a , R 1b , R 1c , R 2a , R 2b and R 2c are the same or different and each represents a hydrogen atom, a halogen atom or a C 1 to C 6 alkyl group which may be substituted with a halogen atom, , R 1a and R 2a do not represent a hydrogen atom at the same time,
R 3 and R 4 are the same or different and each represents a hydrogen atom or a C 1 -C 6 alkyl group. )
[2] The compound of the above-mentioned [1] or a salt thereof, wherein Z is —CH 2 —.
[3] The compound according to the above [1] or a salt thereof, wherein Z is —CH 2 —, R 1a is a halogen atom, and R 2a is a hydrogen atom.
[4] Z is —CH 2 —, X is a single bond, R 1a is a halogen atom, R 2a is a hydrogen atom,
Y 1 -Y 2 is a formula
Figure 2008266236
The compound or its salt of the said [1] description which is group represented by these.
[5] Z is —CH 2 —, X is a single bond, R 1a is a halogen atom, R 2a is a hydrogen atom,
Y 1 -Y 2 is a formula
Figure 2008266236
The compound or its salt of the said [1] description which is group represented by these.

本発明の環状アミン誘導体及びその塩は、優れたIL−6シグナル伝達阻害作用を有する。従って、本発明の環状アミン誘導体及びその塩は、IL−6の異常産生に伴う疾患の治療、予防又は抑制に有効である。   The cyclic amine derivative and the salt thereof of the present invention have an excellent IL-6 signal transduction inhibitory action. Therefore, the cyclic amine derivative and the salt thereof of the present invention are effective for treatment, prevention or suppression of diseases associated with abnormal production of IL-6.

以下、本明細書において使用する用語及び記号の意味を説明し、本発明の内容をより詳細に説明する。   Hereinafter, the meanings of terms and symbols used in this specification will be described, and the contents of the present invention will be described in more detail.

本明細書において、化合物の構造式を一定の異性体を用いて表すことがあるが、その構造式に限定する意図はなく、化合物の構造上生ずる総ての異性体(幾何異性体、鏡像異性体、立体異性体、互変異性体及び回転異性体等)及び異性体の混合物も当該化合物に含まれる。また、本発明に係る化合物に鏡像異性体が存在する場合、光学活性体及びラセミ体のいずれもが含まれる。   In the present specification, the structural formula of a compound may be expressed using a certain isomer, but there is no intention to limit the structural formula, and all isomers (geometric isomers, enantiomers) generated in the structure of the compound. Isomers, stereoisomers, tautomers and rotational isomers) and mixtures of isomers are also included in the compound. Moreover, when an enantiomer exists in the compound according to the present invention, both an optically active substance and a racemate are included.

「ハロゲン原子」とは、フッ素原子、塩素原子、臭素原子及びヨウ素原子を意味する。   “Halogen atom” means a fluorine atom, a chlorine atom, a bromine atom and an iodine atom.

「C〜Cアルキル基」とは、炭素数1〜6個の直鎖状又は分枝鎖状のアルキル基を意味し、具体例として、メチル基、エチル基、1−プロピル基、2−プロピル基、2−メチル−1−プロピル基、2−メチル−2−プロピル基、1−ブチル基、2−ブチル基、1−ペンチル基、2−ペンチル基、3−ペンチル基、2−メチル−1−ブチル基、3−メチル−1−ブチル基、2−メチル−2−ブチル基、3−メチル−2−ブチル基、2,2−ジメチル−1−プロピル基、1−へキシル基、2−へキシル基、3−へキシル基、2−メチル−1−ペンチル基、3−メチル−1−ペンチル基、4−メチル−1−ペンチル基、2−メチル−2−ペンチル基、3−メチル−2−ペンチル基、4−メチル−2−ペンチル基、2−メチル−3−ペンチル基、3−メチル−3−ペンチル基、2,3−ジメチル−1−ブチル基、3,3−ジメチル−1−ブチル基、2,2−ジメチル−1−ブチル基、2−エチル−1−ブチル基、3,3−ジメチル−2−ブチル基及び2,3−ジメチル−2−ブチル基が挙げられる。 The “C 1 -C 6 alkyl group” means a linear or branched alkyl group having 1 to 6 carbon atoms. Specific examples include a methyl group, an ethyl group, a 1-propyl group, 2 -Propyl group, 2-methyl-1-propyl group, 2-methyl-2-propyl group, 1-butyl group, 2-butyl group, 1-pentyl group, 2-pentyl group, 3-pentyl group, 2-methyl -1-butyl group, 3-methyl-1-butyl group, 2-methyl-2-butyl group, 3-methyl-2-butyl group, 2,2-dimethyl-1-propyl group, 1-hexyl group, 2-hexyl group, 3-hexyl group, 2-methyl-1-pentyl group, 3-methyl-1-pentyl group, 4-methyl-1-pentyl group, 2-methyl-2-pentyl group, 3- Methyl-2-pentyl group, 4-methyl-2-pentyl group, 2-methyl-3-pentyl group 3-methyl-3-pentyl group, 2,3-dimethyl-1-butyl group, 3,3-dimethyl-1-butyl group, 2,2-dimethyl-1-butyl group, 2-ethyl-1-butyl group 3,3-dimethyl-2-butyl group and 2,3-dimethyl-2-butyl group.

好ましい「C〜Cアルキル基」は、炭素数1〜3個の直鎖状又は分枝鎖状のアルキル基(以下、「C〜Cアルキル基」という)であり、具体例として、メチル基、エチル基、1−プロピル基及び2−プロピル基が挙げられる。 A preferable “C 1 -C 6 alkyl group” is a linear or branched alkyl group having 1 to 3 carbon atoms (hereinafter referred to as “C 1 -C 3 alkyl group”). , Methyl group, ethyl group, 1-propyl group and 2-propyl group.

「ハロゲン原子で置換されていてもよいC〜Cアルキル基」とは、上記「C〜Cアルキル基」及び上記「C〜Cアルキル基」における水素原子の一部又は全部が上記「ハロゲン原子」により置換された基を示し、具体例として、上記「C〜Cアルキル基」の他、フルオロメチル基、クロロメチル基、ブロモメチル基、ヨードメチル基、1−フルオロエチル基、1−クロロエチル基、2−クロロエチル基、ジフルオロメチル基、トリフルオロメチル基、トリクロロメチル基及び2,2,2−トリフルオロエチル基が挙げられる。 “C 1 -C 6 alkyl group optionally substituted with a halogen atom” means a part or all of hydrogen atoms in the above “C 1 -C 6 alkyl group” and the above “C 1 -C 6 alkyl group” Represents a group substituted by the above-mentioned “halogen atom”, and as specific examples, in addition to the above “C 1 -C 6 alkyl group”, a fluoromethyl group, a chloromethyl group, a bromomethyl group, an iodomethyl group, a 1-fluoroethyl group 1-chloroethyl group, 2-chloroethyl group, difluoromethyl group, trifluoromethyl group, trichloromethyl group, and 2,2,2-trifluoroethyl group.

好ましい「ハロゲン原子で置換されていてもよいC〜Cアルキル基」は、「ハロゲン原子で置換されていてもよいC〜Cアルキル基」である。 Preferred “C 1 -C 6 alkyl group optionally substituted with a halogen atom” is “C 1 -C 3 alkyl group optionally substituted by a halogen atom”.

以下、本発明の化合物及びその塩の各記号の好ましい態様について説明する。   Hereinafter, preferred embodiments of each symbol of the compound of the present invention and the salt thereof will be described.

上記R1a及びR2aは、一方が水素原子であり、他方がフッ素原子、塩素原子、メチル基又はトリフルオロメチル基であることが好ましく、一方が水素原子であり、他方がフッ素原子又はトリフルオロメチル基であることがより好ましい。 One of the R 1a and R 2a is preferably a hydrogen atom, and the other is preferably a fluorine atom, a chlorine atom, a methyl group or a trifluoromethyl group, one is a hydrogen atom, and the other is a fluorine atom or trifluoro More preferred is a methyl group.

上記R1b、R1c、R2b及びR2cは水素原子であることが好ましく、R1a及びR2aは、式

Figure 2008266236
で表される位置で置換されていることが好ましい。このような位置で置換されているR1a及びR2aのうち、どちらか一方は水素原子であることがより好ましい。 R 1b , R 1c , R 2b and R 2c are preferably hydrogen atoms, and R 1a and R 2a are represented by the formula
Figure 2008266236
It is preferably substituted at the position represented by It is more preferable that either one of R 1a and R 2a substituted at such a position is a hydrogen atom.

さらに好ましいR1a及びR2aの組合せとしては、以下の式で表される組合せが挙げられる。

Figure 2008266236
More preferable combinations of R 1a and R 2a include combinations represented by the following formulae.
Figure 2008266236

上記R及びRは、共に水素原子であるか、或いは共にメチル基であることが好ましく、上記Xは、単結合であることが好ましく、上記Zは−CH−であることが好ましい。 R 3 and R 4 are preferably both hydrogen atoms or methyl groups, X is preferably a single bond, and Z is preferably —CH 2 —.

上記Y−Yのうち、

Figure 2008266236
で表される基は、E型であることが好ましい。 Among the Y 1 -Y 2,
Figure 2008266236
The group represented by is preferably E-type.

上記Y−Yは式

Figure 2008266236
で表される基であることが好ましく、式
Figure 2008266236
で表される基であることがより好ましい。 Y 1 -Y 2 is a formula
Figure 2008266236
Is preferably a group represented by the formula:
Figure 2008266236
It is more preferable that it is group represented by these.

本発明の化合物の塩は、本発明の化合物と薬学上許容できる塩基(例えば、無機又は有機塩基)又は酸(例えば、無機又は有機酸)との塩を意味し、好ましくは酸との塩である。   The salt of the compound of the present invention means a salt of the compound of the present invention with a pharmaceutically acceptable base (for example, an inorganic or organic base) or an acid (for example, an inorganic or organic acid), preferably a salt with an acid. is there.

薬学上許容できる無機塩基から誘導される塩としては、例えば、アルミニウム、アンモニウム、カルシウム、銅、第一鉄、第二鉄、リチウム、マグネシウム、マンガン、亜マンガン酸、カリウム及びナトリウム等の無機塩基との塩(特に好ましくは、アンモニウム、カルシウム、マンガン、カリウム及びナトリウム塩)が挙げられる。   Examples of salts derived from pharmaceutically acceptable inorganic bases include, for example, inorganic bases such as aluminum, ammonium, calcium, copper, ferrous, ferric, lithium, magnesium, manganese, manganite, potassium and sodium. (Particularly preferably, ammonium, calcium, manganese, potassium and sodium salts).

薬学上許容できる有機塩基から誘導される塩としては、例えば、第一、第二、第三アミン、置換アミン(例えば天然に存在する置換アミン)、環状アミン並びに塩基性イオン交換樹脂等の有機塩基(例えば、アルギニン、ベタイン、カフェイン、コリン、N,N’−ジベンジルエチレンジアミン、ジエチルアミン、2−ジエチルアミノエタノール、2−ジメチルアミノエタノール、エタノールアミン、エチレンジアミン、N−エチルモルホリン、N−エチルピペリジン、グルカミン、グルコサミン、ヒスチジン、ヒドラバミン、イソプロピルアミン、リジン、メチルグルカミン、モルホリン、ピペラジン、ピペリジン、ポリアミン樹脂、プロカイン、プリン、テオブロミン、トリエチルアミン、トリメチルアミン、トリプロピルアミン、トロメタミン等)との塩が挙げられる。   Examples of salts derived from pharmaceutically acceptable organic bases include organic bases such as primary, secondary, tertiary amines, substituted amines (eg, naturally occurring substituted amines), cyclic amines, and basic ion exchange resins. (For example, arginine, betaine, caffeine, choline, N, N′-dibenzylethylenediamine, diethylamine, 2-diethylaminoethanol, 2-dimethylaminoethanol, ethanolamine, ethylenediamine, N-ethylmorpholine, N-ethylpiperidine, glucamine , Glucosamine, Histidine, Hydrabamine, Isopropylamine, Lysine, Methylglucamine, Morpholine, Piperazine, Piperidine, Polyamine resin, Procaine, Purine, Theobromine, Triethylamine, Trimethylamine, Tripropylamine, Toro Salts with glutamic and the like).

薬学上許容できる無機酸から誘導される塩としては、例えば、塩酸、臭化水素酸、硫酸、硝酸等の無機酸との塩が挙げられる。   Examples of salts derived from pharmaceutically acceptable inorganic acids include salts with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid and nitric acid.

薬学上許容できる有機酸から誘導される塩としては、例えば、酢酸、マレイン酸、フマル酸、コハク酸、乳酸、リンゴ酸、酒石酸、クエン酸、メタンスルホン酸、p−トルエンスルホン酸、サリチル酸、ステアリン酸、パルミチン酸等の有機酸との塩が挙げられる。   Examples of salts derived from pharmaceutically acceptable organic acids include acetic acid, maleic acid, fumaric acid, succinic acid, lactic acid, malic acid, tartaric acid, citric acid, methanesulfonic acid, p-toluenesulfonic acid, salicylic acid, stearin. And salts with organic acids such as acids and palmitic acid.

さらに、本発明の化合物及びその塩は、水和物又は溶媒和物として存在することもある。上述の好ましい化合物を含めて、上記一般式(1)で表される環状アミン誘導体及びその塩が形成する任意の水和物及び溶媒和物は、いずれも本発明の範囲に含まれる。溶媒和物を形成し得る溶媒としては、例えば、メタノール、エタノール、イソプロパノール、アセトン、酢酸エチル、ジクロロメタン、ジイソプロピルエーテル等が挙げられる。   Furthermore, the compounds of the invention and their salts may exist as hydrates or solvates. Any hydrate and solvate formed by the cyclic amine derivative represented by the general formula (1) and the salt thereof, including the above-mentioned preferred compounds, are included in the scope of the present invention. Examples of the solvent that can form a solvate include methanol, ethanol, isopropanol, acetone, ethyl acetate, dichloromethane, diisopropyl ether, and the like.

本発明の化合物又はその塩は、種々の合成法によって製造することができる。以下、代表的な製造法(A法、B法、C法、D法、E法及びG法)について説明する。   The compound of the present invention or a salt thereof can be produced by various synthetic methods. Hereinafter, typical production methods (Method A, Method B, Method C, Method D, Method E and Method G) will be described.

(A法)

Figure 2008266236
(上記スキーム中、R1a、R1b、R1c、R2a、R2b、R2c及びZは上記定義と同じであり、nは1〜3の整数を示す。) (Method A)
Figure 2008266236
(In the above scheme, R 1a , R 1b , R 1c , R 2a , R 2b , R 2c and Z are the same as defined above, and n represents an integer of 1 to 3)

(第一工程)
本工程は、化合物(1)と化合物(2)とから化合物(3)を製造する工程である。本工程は、トリエチルアミン、ジイソプロピルエチルアミン、ピリジン、4−ジメチルアミノピリジン、1,8−ジアザビシクロ[5.4.0]ウンデカ−7−エン(DBU)等の有機塩基又は炭酸カリウム、炭酸ナトリウム、炭酸セシウム、酢酸ナトリウム等の無機塩基の存在下又は非存在下で、N,N−ジメチルホルムアミド、N,N−ジメチルアセトアミド、ジメチルスルホキシド、アセトニトリル、テトラヒドロフラン、ジオキサン、トルエン、キシレン、メシチレン、ピリジン、キノリン、ジクロロメタン等の溶媒中で−20〜150℃で30分〜48時間処理することにより実施することができる。
(First step)
This step is a step of producing compound (3) from compound (1) and compound (2). This step is carried out by using an organic base such as triethylamine, diisopropylethylamine, pyridine, 4-dimethylaminopyridine, 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU) or potassium carbonate, sodium carbonate, cesium carbonate. N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, acetonitrile, tetrahydrofuran, dioxane, toluene, xylene, mesitylene, pyridine, quinoline, dichloromethane in the presence or absence of an inorganic base such as sodium acetate It can implement by processing for 30 minutes-48 hours at -20-150 degreeC in solvent, such as.

(第二工程)
本工程は、化合物(3)のニトロ基を還元して、化合物(4)を製造する工程である。本工程は、例えば化合物(3)に対して1〜20当量の鉄を用いて、酢酸中で常温〜100℃で1〜24時間処理することにより実施することができる。また、パラジウムやラネーニッケルを用いて、常温〜100℃で1〜24時間処理することにより実施することができる。
(Second step)
This step is a step of producing compound (4) by reducing the nitro group of compound (3). This step can be performed, for example, by treating 1 to 20 equivalents of iron with respect to compound (3) and treating in acetic acid at normal temperature to 100 ° C for 1 to 24 hours. Moreover, it can implement by processing at normal temperature-100 degreeC for 1 to 24 hours using palladium and Raney nickel.

(第三工程)
本工程は、化合物(4)をアシル化して化合物(6)を製造する工程である。本工程は適当な塩基の存在下に行うことが好ましい。本工程に用いる塩基としては、トリエチルアミン、トリブチルアミン、ジイソプロピルエチルアミン、N−メチルモルホリン、ピリジン、ルチジン、コリジン等の有機塩基又は炭酸水素ナトリウム、炭酸ナトリウム、炭酸カリウム、炭酸カルシウム、炭酸セシウム、リン酸三カリウム等の無機塩基が例示できる。本工程は、反応に関与しない不活性な溶媒を用いて行うことが好ましく、例えばN,N−ジメチルホルムアミド、N,N−ジメチルアセトアミド、ジメチルスルホキシド、アセトニトリル、テトラヒドロフラン、ジオキサン、ジクロロメタン又はトルエン等が例示できる。これらの溶媒は単独であるいは任意の比で混合して用いられる。本工程は−20〜100℃で30分〜48時間処理することにより実施することができる。
(Third process)
This step is a step of producing compound (6) by acylating compound (4). This step is preferably performed in the presence of a suitable base. Examples of the base used in this step include triethylamine, tributylamine, diisopropylethylamine, N-methylmorpholine, pyridine, lutidine, collidine, and other organic bases, or sodium bicarbonate, sodium carbonate, potassium carbonate, calcium carbonate, cesium carbonate, and triphosphate. An inorganic base such as potassium can be exemplified. This step is preferably performed using an inert solvent that does not participate in the reaction, and examples thereof include N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, acetonitrile, tetrahydrofuran, dioxane, dichloromethane, and toluene. it can. These solvents may be used alone or mixed in any ratio. This process can be implemented by processing at -20-100 degreeC for 30 minutes-48 hours.

(第四工程)
本工程は、化合物(6)と化合物(7)とから化合物(8)を製造する工程である。本工程は、化合物(7)を化合物(6)に対して1〜20当量用いて、塩基の存在下又は非存在下で行うことができる。塩基を用いる場合、適当な塩基としては、例えば、トリエチルアミン、トリブチルアミン、ジイソプロピルエチルアミン、N−メチルモルホリン、ピリジン、ルチジン、コリジン等の有機塩基又は炭酸水素ナトリウム、炭酸ナトリウム、炭酸カリウム、炭酸カルシウム、炭酸セシウム、リン酸三カリウム等の無機塩基が挙げられる。溶媒を用いる場合には、反応に関与しない不活性な溶媒、例えばN,N−ジメチルホルムアミド、スルホラン、アセトニトリル、テトラヒドロフラン、ジオキサン、ジクロロメタン、トルエン、エタノール又は水等が用いられる。本工程は−20〜150℃で30分〜48時間処理することにより実施することができる。
(Fourth process)
This step is a step of producing compound (8) from compound (6) and compound (7). This step can be performed in the presence or absence of a base using 1 to 20 equivalents of compound (7) to compound (6). When a base is used, suitable bases include, for example, organic bases such as triethylamine, tributylamine, diisopropylethylamine, N-methylmorpholine, pyridine, lutidine, collidine, or sodium bicarbonate, sodium carbonate, potassium carbonate, calcium carbonate, carbonate Examples include inorganic bases such as cesium and tripotassium phosphate. When a solvent is used, an inert solvent that does not participate in the reaction, such as N, N-dimethylformamide, sulfolane, acetonitrile, tetrahydrofuran, dioxane, dichloromethane, toluene, ethanol, water, or the like is used. This process can be implemented by processing at -20-150 degreeC for 30 minutes-48 hours.

(B法)

Figure 2008266236
(上記スキーム中、R1a、R1b、R1c、R2a、R2b、R2c及びZは上記定義と同じである。) (Method B)
Figure 2008266236
(In the above scheme, R 1a , R 1b , R 1c , R 2a , R 2b , R 2c and Z are the same as defined above.)

(第一工程)
本工程は、化合物(9)と化合物(2)とから化合物(10)を製造する工程である。本工程は、トリエチルアミン、ジイソプロピルエチルアミン、ピリジン、4−ジメチルアミノピリジン、DBU等の有機塩基又は炭酸カリウム、炭酸ナトリウム、炭酸セシウム、酢酸ナトリウム等の無機塩基の存在下又は非存在下で、N,N−ジメチルホルムアミド、N,N−ジメチルアセトアミド、ジメチルスルホキシド、アセトニトリル、テトラヒドロフラン、ジオキサン、トルエン、キシレン、メシチレン、ピリジン、キノリン、ジクロロメタン等の溶媒中で−20〜150℃で30分〜48時間処理することにより実施することができる。
(First step)
This step is a step of producing compound (10) from compound (9) and compound (2). This step is carried out in the presence or absence of an organic base such as triethylamine, diisopropylethylamine, pyridine, 4-dimethylaminopyridine, DBU or an inorganic base such as potassium carbonate, sodium carbonate, cesium carbonate, sodium acetate, N, N -Treat in a solvent such as dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, acetonitrile, tetrahydrofuran, dioxane, toluene, xylene, mesitylene, pyridine, quinoline, dichloromethane at -20 to 150 ° C for 30 minutes to 48 hours. Can be implemented.

(第二工程)
本工程は、化合物(10)と化合物(11)とから化合物(12)を製造する工程である。本工程は、例えば、水素化ナトリウム等の無機塩基の存在下で、テトラヒドロフラン、ジオキサン等の溶媒中で−20〜100℃で30分〜48時間処理することにより実施することができる。
(Second step)
This step is a step of producing compound (12) from compound (10) and compound (11). This step can be performed, for example, by treatment in a solvent such as tetrahydrofuran or dioxane at −20 to 100 ° C. for 30 minutes to 48 hours in the presence of an inorganic base such as sodium hydride.

(第三工程)
本工程は、化合物(12)のエステル基を加水分解することにより化合物(13)を製造する工程である。本工程は、定法に従い、塩基存在下、反応に影響を及ぼさない溶媒中で行われる。塩基としては、例えば、水酸化カリウム、水酸化ナトリウム等のアルカリ金属塩が挙げられる。反応に影響を及ぼさない溶媒としては、例えば、テトラヒドロフラン、ジオキサン、ジエチルエーテル、メタノール、エタノール、プロパノール、イソプロパノール、ブタノール、水等が挙げられる。本工程は、通常、0〜150℃で30分〜48時間処理することにより実施することができる。
(Third process)
This step is a step of producing compound (13) by hydrolyzing the ester group of compound (12). This step is performed in the presence of a base in a solvent that does not affect the reaction according to a conventional method. Examples of the base include alkali metal salts such as potassium hydroxide and sodium hydroxide. Examples of the solvent that does not affect the reaction include tetrahydrofuran, dioxane, diethyl ether, methanol, ethanol, propanol, isopropanol, butanol, water, and the like. This step can be carried out usually by treating at 0 to 150 ° C. for 30 minutes to 48 hours.

(第四工程)
本工程は、化合物(13)と化合物(7)との縮合反応によって化合物(14)を製造する工程である。本工程で用いられる縮合剤としては、ジシクロヘキシルカルボジイミド(DCC)、3−エチル−1−(3−ジメチルアミノプロピル)カルボジイミド塩酸塩(EDCI)又はジメチルイミダゾリニウムクロライド(DMC)等が挙げられ、これらは固体状又は適当な溶媒に溶かした溶液として添加される。本縮合反応において塩基を用いる場合には、炭酸水素ナトリウム又は炭酸カリウム等のアルカリ炭酸塩、トリエチルアミン、ジイソプロピルエチルアミン、N−メチルモルホリン、ジアザビシクロ[5.4.0]−7−ウンデセン、ピリジン、4−ジメチルアミノピリジン又は1,8−ビス(ジメチルアミノ)ナフタレン等の3級アミン類が例示できる。本縮合反応に用いる溶媒としては反応に関与しない不活性な溶媒、例えばN,N−ジメチルホルムアミド、N,N−ジメチルアセトアミド、ジメチルスルホキシド、アセトニトリル、テトラヒドロフラン、ジオキサン、エチルエーテル、ジメトキシエタン、酢酸エチル、ジクロロメタン等が用いられる。本縮合反応は−20〜80℃で実施することができる。
また、本工程の縮合反応は、カルボン酸のハライド、カルボン酸のイミダゾリド、カルボン酸の活性エステルを経由して行うこともでき、トリエチルアミン、ジイソプロピルエチルアミン、ピリジン、4−ジメチルアミノピリジン等の有機塩基、炭酸水素ナトリウム、炭酸カリウム等の無機塩基の存在下又は非存在下で、N,N−ジメチルホルムアミド、N,N−ジメチルアセトアミド、ジメチルスルホキシド、アセトニトリル、テトラヒドロフラン、ジオキサン、エチルエーテル、ジメトキシエタン、酢酸エチル、トルエン、ジクロロメタン等の溶媒中、−20〜80℃で30分〜48時間処理することにより実施することができる。
(Fourth process)
This step is a step of producing compound (14) by a condensation reaction of compound (13) and compound (7). Examples of the condensing agent used in this step include dicyclohexylcarbodiimide (DCC), 3-ethyl-1- (3-dimethylaminopropyl) carbodiimide hydrochloride (EDCI), and dimethylimidazolinium chloride (DMC). Is added in solid form or as a solution in a suitable solvent. When a base is used in this condensation reaction, an alkali carbonate such as sodium hydrogencarbonate or potassium carbonate, triethylamine, diisopropylethylamine, N-methylmorpholine, diazabicyclo [5.4.0] -7-undecene, pyridine, 4- Examples thereof include tertiary amines such as dimethylaminopyridine and 1,8-bis (dimethylamino) naphthalene. As the solvent used in this condensation reaction, an inert solvent not involved in the reaction, such as N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, acetonitrile, tetrahydrofuran, dioxane, ethyl ether, dimethoxyethane, ethyl acetate, Dichloromethane or the like is used. This condensation reaction can be performed at -20-80 degreeC.
The condensation reaction in this step can also be carried out via a carboxylic acid halide, a carboxylic acid imidazolide, an active ester of a carboxylic acid, an organic base such as triethylamine, diisopropylethylamine, pyridine, 4-dimethylaminopyridine, N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, acetonitrile, tetrahydrofuran, dioxane, ethyl ether, dimethoxyethane, ethyl acetate in the presence or absence of an inorganic base such as sodium bicarbonate or potassium carbonate In a solvent such as toluene or dichloromethane, the treatment can be performed at -20 to 80 ° C for 30 minutes to 48 hours.

(C法)

Figure 2008266236
(上記スキーム中、R1a、R1b、R1c、R2a、R2b及びR2cは上記定義と同じであり、Rはアルキル基等の基を示し、Wは酸素原子又はNHを示し、Yは窒素原子又はメチン基を示し、PGは保護基を示し、nは1〜3の整数を示す。PGで表される保護基としては、例えばアセチル基などのアシル基、tert−ブトキシカルボニル基などの低級アルコキシカルボニル基、及びベンジルオキシカルボニル基などの置換基を有してもよいアリールオキシカルボニル基などが挙げられる。) (Method C)
Figure 2008266236
(In the above scheme, R 1a , R 1b , R 1c , R 2a , R 2b and R 2c are the same as defined above, R represents a group such as an alkyl group, W represents an oxygen atom or NH, Y 2 represents a nitrogen atom or a methine group, PG represents a protecting group, and n represents an integer of 1 to 3. Examples of the protecting group represented by PG include an acyl group such as an acetyl group and a tert-butoxycarbonyl group. And a lower alkoxycarbonyl group such as benzyloxycarbonyl group and an aryloxycarbonyl group which may have a substituent such as a benzyloxycarbonyl group.

(第一工程)
本工程は、化合物(10)から化合物(15)を製造する工程である。本工程は、例えば、メタノール溶媒中、シアン化ナトリウムと過マンガン酸カリウムで、0〜100℃で30分〜48時間処理することにより実施することができる。なお、この場合の化合物(15)におけるRはメチル基となる。
(First step)
This step is a step of producing compound (15) from compound (10). This step can be performed, for example, by treating with sodium cyanide and potassium permanganate in a methanol solvent at 0 to 100 ° C. for 30 minutes to 48 hours. In this case, R in the compound (15) is a methyl group.

(第二工程)
本工程は、化合物(15)のエステル基を加水分解することにより化合物(16)を製造する工程である。本工程は、上記B法・第三工程に準じて行うことができる。
(Second step)
This step is a step of producing compound (16) by hydrolyzing the ester group of compound (15). This process can be performed according to the said B method and 3rd process.

(第三工程)
本工程は、化合物(16)と化合物(17)とから、Curtius転位反応により化合物(18)を製造する工程である。本工程は、例えば、トルエン溶媒中、トリエチルアミンなどの有機塩基存在下、ジフェニルホスホリルアジドで、0〜100℃で30分〜48時間処理することにより実施することができる。
(Third process)
This step is a step of producing compound (18) from compound (16) and compound (17) by Curtius rearrangement reaction. This step can be performed, for example, by treating with diphenylphosphoryl azide at 0 to 100 ° C. for 30 minutes to 48 hours in the presence of an organic base such as triethylamine in a toluene solvent.

(第四工程)
本工程は、化合物(18)の脱保護を行って化合物(19)を製造する工程である。本工程は、公知の方法、例えば「Protecting Groups in Organic Synthesis (John Wily and Sons刊(1999年))」などに従い、化合物(18)における保護基PGを脱保護することで行うことができる。例えば、酸、塩基、ヒドラジン、テトラブチルアンモニウムフロリド、トリメチルシリルヨージドなどを使用する方法、還元法などが挙げられる。
(Fourth process)
This step is a step of producing compound (19) by deprotecting compound (18). This step can be performed by deprotecting the protecting group PG in the compound (18) according to a known method such as “Protecting Groups in Organic Synthesis” (published by John Wily and Sons (1999)). Examples thereof include a method using acid, base, hydrazine, tetrabutylammonium fluoride, trimethylsilyl iodide and the like, and a reduction method.

(第五工程)
本工程は、化合物(19)と化合物(20)とを脱水縮合して化合物(21)を製造する工程である。本工程は、通常、トリアセトキシボロハイドライドやシアノボロハイドライド等の還元剤とともに、ジクロロメタン、トルエン等の溶媒を用いて溶媒中で、−20〜100℃で30分〜48時間処理することにより実施することができる。
(Fifth process)
This step is a step of producing compound (21) by dehydration condensation of compound (19) and compound (20). This step is usually carried out by treating with a reducing agent such as triacetoxyborohydride or cyanoborohydride in a solvent using a solvent such as dichloromethane or toluene at −20 to 100 ° C. for 30 minutes to 48 hours. be able to.

(D法)

Figure 2008266236
(上記スキーム中、R1a、R1b、R1c、R2a、R2b、R2c、R、R及びZは上記定義と同じである。) (Method D)
Figure 2008266236
(In the above scheme, R 1a , R 1b , R 1c , R 2a , R 2b , R 2c , R 3 , R 4 and Z are the same as defined above.)

(第一工程)
本工程は、化合物(10)のホルミル基を還元することにより化合物(22)を製造する工程である。本工程に用いる還元剤としては、水素化ホウ素ナトリウム、ジイソブチルアルミニウムハイドライド(DIBAL)、リチウムアルミニウムハイドライド、リチウムボロハイドライド等が挙げられる。本工程に用いる溶媒としては反応に関与しない不活性な溶媒、例えばメタノール、エタノール、N,N−ジメチルホルムアミド、N,N−ジメチルアセトアミド、ジメチルスルホキシド、アセトニトリル、テトラヒドロフラン、ジオキサン、エチルエーテル、ジメトキシエタン、酢酸エチル、ジクロロメタン等が用いられる。本工程は0〜100℃で30分〜48時間処理することにより実施することができる。
(First step)
This step is a step of producing compound (22) by reducing the formyl group of compound (10). Examples of the reducing agent used in this step include sodium borohydride, diisobutylaluminum hydride (DIBAL), lithium aluminum hydride, lithium borohydride and the like. The solvent used in this step is an inert solvent not involved in the reaction, such as methanol, ethanol, N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, acetonitrile, tetrahydrofuran, dioxane, ethyl ether, dimethoxyethane, Ethyl acetate, dichloromethane or the like is used. This process can be implemented by processing at 0-100 degreeC for 30 minutes-48 hours.

(第二工程)
本工程は、化合物(22)から化合物(23)を製造する工程である。本工程は、化合物(22)とフタルイミドとを、酢酸、活性メチレン化合物などの弱酸、アゾジカルボン酸エチル、アゾジカルボン酸イソプロピルなどのアゾジカルボン酸エステル類、及びトリフェニルホスフィン、トリブチルホスフィンなどのリン試薬の存在下反応させることにより実施することができる。本工程に用いる溶媒としては、反応に関与しない不活性な溶媒、例えばN,N−ジメチルホルムアミド、N,N−ジメチルアセトアミド、ジメチルスルホキシド、アセトニトリル、テトラヒドロフラン、ジオキサン、エチルエーテル、ジメトキシエタン、ベンゼン、トルエン等が用いられる。本工程は−80〜100℃で30分〜48時間処理することにより実施することができる。
(Second step)
This step is a step of producing compound (23) from compound (22). In this step, compound (22) and phthalimide are mixed with weak acid such as acetic acid and active methylene compound, azodicarboxylic acid esters such as ethyl azodicarboxylate and isopropyl azodicarboxylate, and phosphorus reagent such as triphenylphosphine and tributylphosphine. It can implement by making it react in presence of. As a solvent used in this step, an inert solvent not involved in the reaction, for example, N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, acetonitrile, tetrahydrofuran, dioxane, ethyl ether, dimethoxyethane, benzene, toluene Etc. are used. This process can be implemented by processing at -80-100 degreeC for 30 minutes-48 hours.

(第三工程)
本工程は、化合物(23)からGabriel反応により化合物(24)を製造する工程である。本工程は例えば、エタノール溶媒中、ヒドラジン一水和物で、0〜100℃で30分〜48時間処理することにより実施することができる。
(Third process)
This step is a step of producing compound (24) from compound (23) by Gabriel reaction. This step can be performed, for example, by treating with hydrazine monohydrate in an ethanol solvent at 0 to 100 ° C. for 30 minutes to 48 hours.

(第四工程)
本工程は、化合物(24)と化合物(25)とから化合物(26)を製造する工程である。本工程は、上記A法・第三工程に準じて行うことができる。
(Fourth process)
This step is a step of producing compound (26) from compound (24) and compound (25). This process can be performed according to said A method and 3rd process.

(第五工程)
本工程は、化合物(26)と化合物(7)とから化合物(27)を製造する工程である。本工程は、上記A法・第四工程に準じて行うことができる。
(Fifth process)
This step is a step of producing compound (27) from compound (26) and compound (7). This process can be performed according to said A method and 4th process.

(E法)

Figure 2008266236
(上記スキーム中、R1a、R1b、R1c、R2a、R2b、R2c、W、Y、PG及びnは上記C法における定義と同じである。) (E method)
Figure 2008266236
(In the above scheme, R 1a , R 1b , R 1c , R 2a , R 2b , R 2c , W, Y 2 , PG and n are the same as defined in the method C).

(第一工程)
本工程は、化合物(24)と化合物(17)とから化合物(28)を製造する工程である。本工程は、例えばカルボニルジイミダゾールを用いて、反応に関与しない不活性な溶媒、例えばテトラヒドロフラン、酢酸エチル、ベンゼン、トルエン、ジエチルエーテル、ジクロロメタンを用いて、必要に応じてピリジン、トリエチルアミンなどの塩基存在下行うことができる。本工程は0〜100℃で30分〜48時間処理することにより実施することができる。
(First step)
This step is a step of producing compound (28) from compound (24) and compound (17). This step uses, for example, carbonyldiimidazole, an inert solvent that does not participate in the reaction, such as tetrahydrofuran, ethyl acetate, benzene, toluene, diethyl ether, dichloromethane, and the presence of a base such as pyridine or triethylamine as necessary. Can be done below. This process can be implemented by processing at 0-100 degreeC for 30 minutes-48 hours.

(第二工程)
本工程は、化合物(28)の脱保護を行って化合物(29)を製造する工程である。本工程は、上記C法・第四工程に準じて行うことができる。
(Second step)
This step is a step of producing compound (29) by deprotecting compound (28). This process can be performed according to said C method and a 4th process.

(第三工程)
本工程は、化合物(29)と化合物(20)とから化合物(30)を製造する工程である。本工程は、上記C法・第五工程に準じて行うことができる。
(Third process)
This step is a step of producing compound (30) from compound (29) and compound (20). This process can be performed according to said C method and a 5th process.

(F法)

Figure 2008266236
(上記スキーム中、R1a、R1b、R1c、R2a、R2b、R2c及びZは上記定義と同じであり、nは1〜3の整数を示す。) (F method)
Figure 2008266236
(In the above scheme, R 1a , R 1b , R 1c , R 2a , R 2b , R 2c and Z are the same as defined above, and n represents an integer of 1 to 3)

(第一工程)
本工程は、化合物(31)と化合物(32)とから化合物(33)を製造する工程である。本工程は、上記A法・第一工程に準じて行うことができる。
(First step)
This step is a step of producing compound (33) from compound (31) and compound (32). This process can be performed according to said A method and 1st process.

(第二工程)
本工程は、化合物(33)と化合物(5)とから化合物(34)を製造する工程である。本工程は、上記A法・第三工程に準じて行うことができる。
(Second step)
This step is a step of producing a compound (34) from the compound (33) and the compound (5). This process can be performed according to said A method and 3rd process.

(第三工程)
本工程は、化合物(34)と化合物(7)とから化合物(35)を製造する工程である。本工程は、上記A法・第四工程に準じて行うことができる。
(Third process)
This step is a step of producing the compound (35) from the compound (34) and the compound (7). This process can be performed according to said A method and 4th process.

(G法)

Figure 2008266236
(上記スキーム中、R1a、R1b、R1c、R2a、R2b、R2c及びZは上記定義と同じである。) (G method)
Figure 2008266236
(In the above scheme, R 1a , R 1b , R 1c , R 2a , R 2b , R 2c and Z are the same as defined above.)

(第一工程)
本工程は、化合物(8)のカルボニル基を還元することにより化合物(36)を製造する工程である。本工程に用いる還元剤としては、水素化ホウ素ナトリウム、ボラン、ボラン−ジメチルスルフィド錯体、リチウムアルミニウムハイドライド、リチウムボロハイドライド等が挙げられる。本工程に用いる溶媒としては反応に関与しない不活性な溶媒、例えばN,N−ジメチルホルムアミド、N,N−ジメチルアセトアミド、ジメチルスルホキシド、アセトニトリル、テトラヒドロフラン、ジオキサン、エチルエーテル、ジメトキシエタン、酢酸エチル、ジクロロメタン等が用いられる。本工程は−80〜100℃で30分〜48時間処理することにより実施することができる。
(First step)
This step is a step of producing compound (36) by reducing the carbonyl group of compound (8). Examples of the reducing agent used in this step include sodium borohydride, borane, borane-dimethyl sulfide complex, lithium aluminum hydride, lithium borohydride and the like. The solvent used in this step is an inert solvent not involved in the reaction, such as N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, acetonitrile, tetrahydrofuran, dioxane, ethyl ether, dimethoxyethane, ethyl acetate, dichloromethane. Etc. are used. This process can be implemented by processing at -80-100 degreeC for 30 minutes-48 hours.

(第二工程)
本工程は化合物(36)をアシル化して化合物(38)を製造する工程である。本工程は適当な塩基の存在下に行うことが好ましい。本工程に用いる塩基としては、トリエチルアミン、トリブチルアミン、ジイソプロピルエチルアミン、N−メチルモルホリン、ピリジン、ルチジン、コリジン等の有機塩基、炭酸水素ナトリウム、炭酸ナトリウム、炭酸カリウム、炭酸カルシウム、炭酸セシウム又はリン酸三カリウム等の無機塩基が例示できる。本工程は、反応に関与しない不活性な溶媒を用いて行うことが好ましく、例えばN,N−ジメチルホルムアミド、N,N−ジメチルアセトアミド、ジメチルスルホキシド、アセトニトリル、テトラヒドロフラン、ジオキサン、ジクロロメタン又はトルエン等が例示できる。これらの溶媒は単独であるいは任意の比で混合して用いられる。本工程は−20〜100℃で30分〜48時間処理することにより実施することができる。
(Second step)
This step is a step of producing compound (38) by acylating compound (36). This step is preferably performed in the presence of a suitable base. Bases used in this step include organic bases such as triethylamine, tributylamine, diisopropylethylamine, N-methylmorpholine, pyridine, lutidine, collidine, sodium bicarbonate, sodium carbonate, potassium carbonate, calcium carbonate, cesium carbonate or triphosphate. An inorganic base such as potassium can be exemplified. This step is preferably performed using an inert solvent that does not participate in the reaction, and examples thereof include N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, acetonitrile, tetrahydrofuran, dioxane, dichloromethane, and toluene. it can. These solvents may be used alone or mixed in any ratio. This process can be implemented by processing at -20-100 degreeC for 30 minutes-48 hours.

上述の方法等により合成される本発明の化合物は、通常の分離手段(例えば抽出、再結晶、蒸留、クロマトグラフィー等)によって単離、精製することができる。また、得られた化合物が塩を形成し得る場合には、通常の方法あるいはそれに準ずる方法(例えば中和等)によって各種の塩を製造することができる。   The compound of the present invention synthesized by the above-described method and the like can be isolated and purified by a usual separation means (for example, extraction, recrystallization, distillation, chromatography, etc.). When the obtained compound can form a salt, various salts can be produced by a usual method or a method equivalent thereto (for example, neutralization).

本発明の化合物もしくはその塩は、単独で、又は適宜、薬理学的に許容される賦形剤、希釈剤等と混合し、例えば、錠剤、カプセル剤、顆粒剤、散剤若しくはシロップ剤等の製剤として経口的に、又は注射剤若しくは座剤等の製剤として非経口的に医薬組成物として投与することができる。   The compound of the present invention or a salt thereof alone or appropriately mixed with a pharmacologically acceptable excipient, diluent or the like, for example, a preparation such as a tablet, capsule, granule, powder or syrup As a pharmaceutical composition orally or parenterally as a preparation such as injection or suppository.

これらの製剤は、賦形剤、滑沢剤、結合剤、崩壊剤、安定剤、矯味矯臭剤、希釈剤等の添加剤を用いて周知の方法で製造される。   These preparations are produced by known methods using additives such as excipients, lubricants, binders, disintegrants, stabilizers, flavoring agents, and diluents.

賦形剤は、有機系賦形剤又は無機系賦形剤であり得る。有機系賦形剤は、例えば、乳糖、白糖、葡萄糖、マンニトール、ソルビトールのような糖誘導体;トウモロコシデンプン、バレイショデンプン、α澱粉、デキストリンのようなデンプン誘導体;結晶セルロースのようなセルロース誘導体;アラビアゴム;デキストラン;又はプルラン等であり得る。無機賦形剤は、例えば、軽質無機ケイ酸、合成ケイ酸アルミニウム、ケイ酸カルシウム、メタケイ酸アルミン酸マグネシウムのようなケイ酸塩誘導体;リン酸水素カルシウムのようなリン酸塩;炭酸カルシウムのような炭酸塩;又は硫酸カルシウムのような硫酸塩等であり得る。   The excipient may be an organic excipient or an inorganic excipient. Organic excipients include, for example, sugar derivatives such as lactose, sucrose, sucrose, mannitol, sorbitol; starch derivatives such as corn starch, potato starch, alpha starch, dextrin; cellulose derivatives such as crystalline cellulose; gum arabic Dextran; or pullulan and the like. Inorganic excipients include, for example, light inorganic silicates, synthetic aluminum silicates, calcium silicates, magnesium metasilicate magnesium silicate derivatives; phosphates such as calcium hydrogen phosphate; Carbonates; or sulfates such as calcium sulfate.

滑沢剤は、例えば、ステアリン酸、ステアリン酸カルシウム、ステアリン酸マグネシウムのようなステアリン酸金属塩;タルク;コロイドシリカ;ビーガムのようなワックス類;アジピン酸;硫酸ナトリウムのような硫酸塩;グリコール;フマル酸;安息香酸ナトリウム;DL−ロイシン;脂肪酸ナトリウム;ラウリル硫酸ナトリウム、ラウリル硫酸マグネシウムのようなラウリル硫酸塩;無水ケイ酸、ケイ酸水和物のようなケイ酸類;又は上記デンプン誘導体であり得る。   Lubricants include, for example, stearic acid, calcium stearate, magnesium stearate such as magnesium stearate; talc; colloidal silica; waxes such as bee gum; adipic acid; sulfate such as sodium sulfate; glycol; It can be an acid; sodium benzoate; DL-leucine; fatty acid sodium; lauryl sulfate such as sodium lauryl sulfate and magnesium lauryl sulfate; silicic acids such as silicic anhydride and silicate hydrate; or the starch derivatives.

結合剤は、例えば、ヒドロキシプロピルセルロース、ヒドロキシメチルプロピルセルロース、ポリビニルピロリドン、マクロゴール、又は上記賦形剤と同様の化合物であり得る。   The binder can be, for example, hydroxypropylcellulose, hydroxymethylpropylcellulose, polyvinylpyrrolidone, macrogol, or a compound similar to the excipients described above.

崩壊剤は、例えば、低置換度ヒドロキシプロピルセルロース、カルボキシメチルセルロース、カルボキシメチルセルロースカルシウム、内部架橋カルボキシメチルセルロースナトリウムのようなセルロース誘導体;又はカルボキシメチルスターチ、カルボキシメチルスターチナトリウム、架橋ポリビニルピロリドンのような化学修飾されたデンプン・セルロース類であり得る。   Disintegrants are, for example, low-substituted hydroxypropylcellulose, carboxymethylcellulose, carboxymethylcellulose calcium, cellulose derivatives such as internally crosslinked sodium carboxymethylcellulose; or chemically modified such as carboxymethyl starch, sodium carboxymethyl starch, crosslinked polyvinylpyrrolidone. Starches and celluloses.

安定剤は、例えば、メチルパラベン、プロピルパラベンのようなパラヒドロキシ安息香酸エステル類;クロロブタノール、ベンジルアルコール、フェネチルアルコールのようなアルコール類;塩化ベンザルコニウム;フェノール、クレゾールのようなクレゾール類;チメロサール;デヒドロ酢酸;又はソルビン酸であり得る。   Stabilizers include, for example, parahydroxybenzoates such as methyl paraben and propyl paraben; alcohols such as chlorobutanol, benzyl alcohol and phenethyl alcohol; benzalkonium chloride; cresols such as phenol and cresol; thimerosal; Can be dehydroacetic acid; or sorbic acid.

矯味矯臭剤は、例えば、通常使用される、甘味料、酸味料、香料であり得る。   The flavoring agent can be, for example, commonly used sweeteners, acidulants, and fragrances.

希釈剤は、例えば、注射用蒸留水、生理食塩水、ブドウ糖注射液等の通常使用されるものであり得る。   The diluent may be a commonly used one such as distilled water for injection, physiological saline, and glucose injection solution.

本発明の化合物又はその塩の投与量は、その種類、投与ルート、患者の年齢、症状等により異なるが、例えば人を含む哺乳動物に対して、本発明の化合物又はその塩として0.001〜500mg/kg/日である。投与は例えば1日1回又は数回に分割して投与する。   The dose of the compound of the present invention or a salt thereof varies depending on the type, administration route, age of the patient, symptoms, etc., but for example, 0.001 to 0.001 as the compound of the present invention or a salt thereof for mammals including humans. 500 mg / kg / day. Administration is, for example, once a day or divided into several times.

以下、参考例、実施例及び試験例に基づいて本発明をより詳細に説明する。参考例は、本発明化合物の製造に用いる原料化合物の製造例を示したものである。ただし、以下の参考例、実施例及び試験例は例示的なものであり、本発明はいかなる場合も以下の具体例に限定されるものではない。   Hereinafter, the present invention will be described in more detail based on reference examples, examples, and test examples. Reference examples show production examples of raw material compounds used in the production of the compounds of the present invention. However, the following reference examples, examples and test examples are illustrative, and the present invention is not limited to the following specific examples in any case.

(参考例1)
2−(4−クロロフェニルチオ)ニトロベンゼン

Figure 2008266236
4−クロロチオフェノール(5.20g)をN−メチル−2−ピロリジノン(50mL)に溶かし、0℃に冷却後、炭酸カリウム(15g)加えた。0℃で15分撹拌した後、2−フルオロニトロベンゼン(5.00g)を滴下した。反応液を常温に戻し、1時間撹拌した。反応液を水にあけ、酢酸エチルで抽出し、有機層を水と飽和食塩水で洗浄した。無水硫酸ナトリウムで乾燥後、反応液を濃縮し、残渣をヘキサンに懸濁した。沈殿をろ取し、乾燥し、黄色固体として2−(4−クロロフェニルチオ)ニトロベンゼン(8.86g)を得た。
1H-NMR (400 MHz, CDCl3) δ 6.86 (1H, dd, J = 7.5, 1.2 Hz), 7.24 (1H, td, J = 7.5, 1.2 Hz), 7.37 (1H, td, J = 7.5, 1.2 Hz), 7.46 (2H, d, J = 8.6 Hz), 7.52 (2H, d, J = 8.6 Hz), 8.23 (1H, dd, J = 7.5, 1.2 Hz). (Reference Example 1)
2- (4-Chlorophenylthio) nitrobenzene
Figure 2008266236
4-Chlorothiophenol (5.20 g) was dissolved in N-methyl-2-pyrrolidinone (50 mL), cooled to 0 ° C., and potassium carbonate (15 g) was added. After stirring at 0 ° C. for 15 minutes, 2-fluoronitrobenzene (5.00 g) was added dropwise. The reaction solution was returned to room temperature and stirred for 1 hour. The reaction mixture was poured into water and extracted with ethyl acetate, and the organic layer was washed with water and saturated brine. After drying over anhydrous sodium sulfate, the reaction mixture was concentrated and the residue was suspended in hexane. The precipitate was collected by filtration and dried to give 2- (4-chlorophenylthio) nitrobenzene (8.86 g) as a yellow solid.
1 H-NMR (400 MHz, CDCl 3 ) δ 6.86 (1H, dd, J = 7.5, 1.2 Hz), 7.24 (1H, td, J = 7.5, 1.2 Hz), 7.37 (1H, td, J = 7.5, 1.2 Hz), 7.46 (2H, d, J = 8.6 Hz), 7.52 (2H, d, J = 8.6 Hz), 8.23 (1H, dd, J = 7.5, 1.2 Hz).

(参考例2)
2−(4−クロロフェニルチオ)アニリン

Figure 2008266236
2−(4−クロロフェニルチオ)ニトロベンゼン(参考例1の化合物:200mg)を酢酸(10mL)に溶かし、鉄粉(840mg)を加え、60℃で1.5時間撹拌した。反応液を氷にあけ、炭酸水素ナトリウムで塩基性とした。酢酸エチルで抽出し、有機層を飽和重曹水と飽和食塩水で洗浄した。無水硫酸ナトリウムで乾燥後、反応液を濃縮し、無色油状物として2−(4−クロロフェニルチオ)アニリン(181mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 4.11 (2H, br s), 6.72-6.78 (2H, m), 6.98 (2H, d, J = 8.6 Hz), 7.16 (2H, d, J = 8.6 Hz), 7.23 (1H, td, J = 7.6, 1.5 Hz), 7.42 (1H, dd, J = 7.6, 1.5 Hz). (Reference Example 2)
2- (4-Chlorophenylthio) aniline
Figure 2008266236
2- (4-Chlorophenylthio) nitrobenzene (the compound of Reference Example 1: 200 mg) was dissolved in acetic acid (10 mL), iron powder (840 mg) was added, and the mixture was stirred at 60 ° C. for 1.5 hours. The reaction was poured into ice and basified with sodium bicarbonate. Extraction was performed with ethyl acetate, and the organic layer was washed with saturated aqueous sodium bicarbonate and saturated brine. After drying over anhydrous sodium sulfate, the reaction mixture was concentrated to give 2- (4-chlorophenylthio) aniline (181 mg) as a colorless oil.
1 H-NMR (400 MHz, CDCl 3 ) δ 4.11 (2H, br s), 6.72-6.78 (2H, m), 6.98 (2H, d, J = 8.6 Hz), 7.16 (2H, d, J = 8.6 Hz), 7.23 (1H, td, J = 7.6, 1.5 Hz), 7.42 (1H, dd, J = 7.6, 1.5 Hz).

(参考例3)
2−クロロ−2’−(4−クロロフェニルチオ)アセトアニリド

Figure 2008266236
2−(4−クロロフェニルチオ)アニリン(参考例2の化合物:180mg)をジクロロメタン(2mL)に溶かし、ピリジン(0.2mL)を加えた。0℃に冷却後、クロロアセチルクロリド(0.06mL,0.75mmol)のジクロロメタン(0.5mL)溶液をゆっくりと滴下した。0℃で1時間撹拌した後、少量の水を加え反応を止めた。反応液を水にあけ酢酸エチルで抽出し、有機層を希塩酸と飽和食塩水で洗浄した。無水硫酸ナトリウムで乾燥後、反応液を濃縮し、褐色固体として2−クロロ−2’−(4−クロロフェニルチオ)−アセトアニリド(258mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 4.10 (2H, s), 7.03 (2H, d, J = 8.6 Hz), 7.17-7.23 (3H, m), 7.48 (1H, td, J = 7.9, 1.2 Hz), 7.62 (1H, dd, J = 7.9, 1.2 Hz), 8.45 (1H, dd, J = 7.9, 1.2 Hz), 9.42 (1H, s). (Reference Example 3)
2-Chloro-2 '-(4-chlorophenylthio) acetanilide
Figure 2008266236
2- (4-Chlorophenylthio) aniline (the compound of Reference Example 2: 180 mg) was dissolved in dichloromethane (2 mL), and pyridine (0.2 mL) was added. After cooling to 0 ° C., a solution of chloroacetyl chloride (0.06 mL, 0.75 mmol) in dichloromethane (0.5 mL) was slowly added dropwise. After stirring at 0 ° C. for 1 hour, a small amount of water was added to stop the reaction. The reaction mixture was poured into water and extracted with ethyl acetate, and the organic layer was washed with dilute hydrochloric acid and saturated brine. After drying over anhydrous sodium sulfate, the reaction mixture was concentrated to give 2-chloro-2 ′-(4-chlorophenylthio) -acetanilide (258 mg) as a brown solid.
1 H-NMR (400 MHz, CDCl 3 ) δ 4.10 (2H, s), 7.03 (2H, d, J = 8.6 Hz), 7.17-7.23 (3H, m), 7.48 (1H, td, J = 7.9, 1.2 Hz), 7.62 (1H, dd, J = 7.9, 1.2 Hz), 8.45 (1H, dd, J = 7.9, 1.2 Hz), 9.42 (1H, s).

(参考例4)
3−クロロ−2’−(4−クロロフェニルチオ)プロピオアニリド

Figure 2008266236
参考例3と同様の方法により、2−(4−クロロフェニルチオ)アニリン(参考例2の化合物:502mg)、及び3−クロロプロピオニルクロリド(0.22mL)から無色粉末として3−クロロ−2’−(4−クロロフェニルチオ)−プロピオアニリド(513mg)を得た。
1H -NMR (400 MHz, CDCl3) δ 2.72(2H, t, J = 6.1 Hz), 3.77(2H, t, J = 6.1 Hz), 6.99(2H, d, J = 8.6 Hz), 7.15(1H, t, J = 7.3 Hz), 7.22(2H, d, J = 8.6 Hz), 7.47(1H, t, J = 7.3 Hz), 7.57(1H, d, J = 7.3 Hz), 8.27(1H, brs), 8.46(1H, d, J = 7.3 Hz). (Reference Example 4)
3-Chloro-2 '-(4-chlorophenylthio) propioanilide
Figure 2008266236
According to the same method as in Reference Example 3, 2- (4-chlorophenylthio) aniline (Compound of Reference Example 2: 502 mg) and 3-chloropropionyl chloride (0.22 mL) as 3-chloro-2′- (4-Chlorophenylthio) -propioanilide (513 mg) was obtained.
1 H -NMR (400 MHz, CDCl 3 ) δ 2.72 (2H, t, J = 6.1 Hz), 3.77 (2H, t, J = 6.1 Hz), 6.99 (2H, d, J = 8.6 Hz), 7.15 ( 1H, t, J = 7.3 Hz), 7.22 (2H, d, J = 8.6 Hz), 7.47 (1H, t, J = 7.3 Hz), 7.57 (1H, d, J = 7.3 Hz), 8.27 (1H, brs), 8.46 (1H, d, J = 7.3 Hz).

(参考例5)
2−ブロモ−N−[2−(4−クロロフェニルチオ)フェニル]−2−メチルプロピルアミド

Figure 2008266236
2−(4−クロロフェニルチオ)アニリン(参考例2の化合物:202mg)をジクロロメタン(5mL)に溶解させ0℃に冷却し、トリエチルアミン(0.24mL)、α―ブロモイソブチリルブロミド(0.115mL)を加え、4時間常温で撹拌した。反応液に水を加え、酢酸エチルで抽出し、有機層を水、飽和食塩水で順次洗浄し、無水硫酸ナトリウムで乾燥して溶媒を濃縮した。残渣をシリカゲルクロマトグラフィー(Chromatrex,ヘキサン:酢酸エチル=10:1)により精製し、黄色油状物として2−ブロモ−N−[2−(4−クロロフェニルチオ)フェニル]−2−メチルプロピルアミド(310mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 1.86(6H, s), 7.01(2H, d, J = 8.6 Hz), 7.14-7.24(3H, m), 7.49(1H, t, J = 7.3 Hz), 7.62(1H, dd, J = 7.3, 1.2 Hz), 9.49(1H, brs). (Reference Example 5)
2-Bromo-N- [2- (4-chlorophenylthio) phenyl] -2-methylpropylamide
Figure 2008266236
2- (4-Chlorophenylthio) aniline (Compound of Reference Example 2: 202 mg) was dissolved in dichloromethane (5 mL), cooled to 0 ° C., triethylamine (0.24 mL), α-bromoisobutyryl bromide (0.115 mL). ) And stirred at room temperature for 4 hours. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine, dried over anhydrous sodium sulfate, and the solvent was concentrated. The residue was purified by silica gel chromatography (Chromatrex, hexane: ethyl acetate = 10: 1) to give 2-bromo-N- [2- (4-chlorophenylthio) phenyl] -2-methylpropylamide (310 mg as a yellow oil). )
1 H-NMR (400 MHz, CDCl 3 ) δ 1.86 (6H, s), 7.01 (2H, d, J = 8.6 Hz), 7.14-7.24 (3H, m), 7.49 (1H, t, J = 7.3 Hz ), 7.62 (1H, dd, J = 7.3, 1.2 Hz), 9.49 (1H, brs).

(参考例6)
2−(4−クロロフェニルチオ)ベンズアルデヒド

Figure 2008266236
4−クロロベンゼンチオール(3.01g)をN−メチル−2−ピロリジノン(30mL)に溶解し、氷冷下、炭酸カリウム(5.75g)、2−フルオロベンズアルデヒド(2.44g)を加え、80℃で2時間撹拌した。反応液を水にあけ、酢酸エチルで抽出し、有機層を水、飽和炭酸水素ナトリウム水溶液、飽和食塩水で順次洗浄し、無水硫酸ナトリウムで乾燥して溶媒を濃縮した残渣をシリカゲルカラムクロマトグラフィー(シリカゲル60,0.040〜0.063mm;ヘキサン:酢酸エチル=20:1)で精製し、黄色粉末として2−(4−クロロフェニルチオ)ベンズアルデヒド(4.67g)を得た。
1H-NMR (400 MHz, CDCl3) δ 7.08(1H, d, J = 7.9 Hz), 7.30-7.47(6H, m), 7.89(1H, dd, J = 7.9, 1.2 Hz), 10.36(1H, s). (Reference Example 6)
2- (4-Chlorophenylthio) benzaldehyde
Figure 2008266236
4-Chlorobenzenethiol (3.01 g) was dissolved in N-methyl-2-pyrrolidinone (30 mL), and potassium carbonate (5.75 g) and 2-fluorobenzaldehyde (2.44 g) were added under ice-cooling. For 2 hours. The reaction mixture was poured into water and extracted with ethyl acetate. The organic layer was washed successively with water, saturated aqueous sodium hydrogen carbonate solution and saturated brine, dried over anhydrous sodium sulfate, and the solvent was concentrated. Purification by silica gel 60, 0.040 to 0.063 mm; hexane: ethyl acetate = 20: 1) gave 2- (4-chlorophenylthio) benzaldehyde (4.67 g) as a yellow powder.
1 H-NMR (400 MHz, CDCl 3 ) δ 7.08 (1H, d, J = 7.9 Hz), 7.30-7.47 (6H, m), 7.89 (1H, dd, J = 7.9, 1.2 Hz), 10.36 (1H , s).

(参考例7)
(E)−3−[2−(4−クロロフェニルチオ)フェニル]アクリル酸エチル

Figure 2008266236
トリエチルホスホノアセテート(4.50g)をテトラヒドロフラン(30mL)に溶かし、0℃に冷却し、水素化ナトリウム(750mg)を加えた。0℃で15分撹拌した後、2−(4−クロロフェニルチオ)ベンズアルデヒド(参考例6の化合物:3.28g)のテトラヒドロフラン溶液(10mL)を滴下し、滴下後反応液を常温に戻し、2時間撹拌した。その後、少量の水を加えて反応を止めた。反応液を水にあけ、酢酸エチルで抽出し、有機層を水と飽和食塩水で洗浄した。無水硫酸ナトリウムで乾燥後、反応液を濃縮し、残渣をシリカゲルカラムクロマトグラフィー(シリカゲル60,0.040〜0.063mm;ヘキサン:酢酸エチル=100:1)で精製し、無色固体として(E)−3−[2−(4−クロロフェニルチオ)フェニル]アクリル酸エチル(4.19g)を得た。
1H-NMR (400 MHz, CDCl3) δ 1.32 (3H, t, J = 7.2 Hz), 4.25 (2H, q, J = 7.2 Hz), 6.36 (1H, d, J = 15.9 Hz), 7.16 (2H, d, J = 9.2 Hz), 7.24 (2H, d, J = 9.2 Hz), 7.31-7.38 (3H, m), 7.64 (1H, dd, J = 7.0, 2.1 Hz), 8.21 (1H, d, J = 15.9 Hz). (Reference Example 7)
(E) -3- [2- (4-Chlorophenylthio) phenyl] ethyl acrylate
Figure 2008266236
Triethylphosphonoacetate (4.50 g) was dissolved in tetrahydrofuran (30 mL), cooled to 0 ° C., and sodium hydride (750 mg) was added. After stirring at 0 ° C. for 15 minutes, a tetrahydrofuran solution (10 mL) of 2- (4-chlorophenylthio) benzaldehyde (the compound of Reference Example 6: 3.28 g) was added dropwise, and after the dropwise addition, the reaction solution was returned to room temperature for 2 hours. Stir. Thereafter, a small amount of water was added to stop the reaction. The reaction mixture was poured into water and extracted with ethyl acetate, and the organic layer was washed with water and saturated brine. After drying over anhydrous sodium sulfate, the reaction mixture is concentrated, and the residue is purified by silica gel column chromatography (silica gel 60, 0.040-0.063 mm; hexane: ethyl acetate = 100: 1) to give a colorless solid (E) Ethyl-3- [2- (4-chlorophenylthio) phenyl] acrylate (4.19 g) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.32 (3H, t, J = 7.2 Hz), 4.25 (2H, q, J = 7.2 Hz), 6.36 (1H, d, J = 15.9 Hz), 7.16 ( 2H, d, J = 9.2 Hz), 7.24 (2H, d, J = 9.2 Hz), 7.31-7.38 (3H, m), 7.64 (1H, dd, J = 7.0, 2.1 Hz), 8.21 (1H, d , J = 15.9 Hz).

(参考例8)
(E)−3−[2−(4−クロロフェニルチオ)フェニル]アクリル酸

Figure 2008266236
(E)−3−[2−(4−クロロフェニルチオ)フェニル]アクリル酸エチル(参考例7の化合物:2.00g)をエタノール(40mL)に溶かし、水酸化ナトリウム水溶液(1mol/L、40mL)を加え、80℃で3時間撹拌した。反応液を氷にあけ、希塩酸で酸性にした。酢酸エチルで抽出し、有機層を水と飽和食塩水で洗浄した。無水硫酸ナトリウムで乾燥後、反応液を濃縮し、無色固体として(E)−3−[2−(4−クロロフェニルチオ)フェニル]アクリル酸(1.70g)を得た。
1H-NMR (400 MHz, CDCl3) δ 6.38 (1H, d, J = 15.9 Hz), 7.17 (2H, d, J = 8.6 Hz), 7.26 (2H, d, J = 8.6 Hz), 7.34-7.39 (3H, m), 7.67 (1H, dd, J = 7.0, 2.1 Hz), 8.32 (1H, d, J = 15.9 Hz). (Reference Example 8)
(E) -3- [2- (4-Chlorophenylthio) phenyl] acrylic acid
Figure 2008266236
(E) Ethyl-3- [2- (4-chlorophenylthio) phenyl] acrylate (the compound of Reference Example 7: 2.00 g) was dissolved in ethanol (40 mL), and an aqueous sodium hydroxide solution (1 mol / L, 40 mL). And stirred at 80 ° C. for 3 hours. The reaction mixture was poured into ice and acidified with dilute hydrochloric acid. The mixture was extracted with ethyl acetate, and the organic layer was washed with water and saturated brine. After drying over anhydrous sodium sulfate, the reaction mixture was concentrated to give (E) -3- [2- (4-chlorophenylthio) phenyl] acrylic acid (1.70 g) as a colorless solid.
1 H-NMR (400 MHz, CDCl 3 ) δ 6.38 (1H, d, J = 15.9 Hz), 7.17 (2H, d, J = 8.6 Hz), 7.26 (2H, d, J = 8.6 Hz), 7.34- 7.39 (3H, m), 7.67 (1H, dd, J = 7.0, 2.1 Hz), 8.32 (1H, d, J = 15.9 Hz).

(参考例9)
2−(4−クロロフェニルチオ)安息香酸メチル

Figure 2008266236
2−(4−クロロフェニルチオ)ベンズアルデヒド(参考例6の化合物:2.64g)をメタノール(30mL)に溶解させ、シアン化ナトリウム(2.58g)を加え常温で2時間撹拌後、二酸化マンガン(9.20g)を加え、2時間撹拌した。反応液に飽和炭酸水素ナトリウム水溶液を加えセライトろ過した。濾液を酢酸エチルで抽出し、有機層を水、飽和食塩水で順次洗浄し、無水硫酸ナトリウムで乾燥して溶媒を濃縮した。残渣をシリカゲルクロマトグラフィー(Chromatrex、ヘキサン:酢酸エチル=10:1)により精製し、無色粉末として2−(4−クロロフェニルチオ)安息香酸メチル(2.61g)を得た。
1H-NMR (400 MHz, CDCl3) δ 3.95(3H, s), 6.81(1H, d, J = 7.9 Hz), 7.15(1H, t, J = 7.9 Hz), 7.23-7.31(1H, m), 7.40(2H, d, J = 8.6 Hz), 7.48(2H, d, J = 8.6 Hz), 7.98(1H, dd, J = 7.9, 1.2 Hz). (Reference Example 9)
Methyl 2- (4-chlorophenylthio) benzoate
Figure 2008266236
2- (4-Chlorophenylthio) benzaldehyde (the compound of Reference Example 6: 2.64 g) was dissolved in methanol (30 mL), sodium cyanide (2.58 g) was added, and the mixture was stirred at room temperature for 2 hours. 20 g) was added and stirred for 2 hours. A saturated aqueous sodium hydrogen carbonate solution was added to the reaction mixture, and the mixture was filtered through celite. The filtrate was extracted with ethyl acetate, and the organic layer was washed successively with water and saturated brine, dried over anhydrous sodium sulfate, and the solvent was concentrated. The residue was purified by silica gel chromatography (Chromatrex, hexane: ethyl acetate = 10: 1) to obtain methyl 2- (4-chlorophenylthio) benzoate (2.61 g) as a colorless powder.
1 H-NMR (400 MHz, CDCl 3 ) δ 3.95 (3H, s), 6.81 (1H, d, J = 7.9 Hz), 7.15 (1H, t, J = 7.9 Hz), 7.23-7.31 (1H, m ), 7.40 (2H, d, J = 8.6 Hz), 7.48 (2H, d, J = 8.6 Hz), 7.98 (1H, dd, J = 7.9, 1.2 Hz).

(参考例10)
2−(4−クロロフェニルチオ)安息香酸

Figure 2008266236
2−(4−クロロフェニルチオ)安息香酸メチル(参考例9の化合物:1.57g)のメタノール(20mL)溶液に水酸化カリウム水溶液(1mol/L、17mL)を加え、2時間加熱還流した。反応液を濃縮し、塩酸(1mol/L)で酸性とした後、結晶をろ取し、水で洗浄後乾燥し無色粉末として2−(4−クロロフェニルチオ)安息香酸(1.44g)を得た。
1H-NMR(400 MHz, DMSO) δ 6.43(1H, dd, J = 7.3, 1.2 Hz), 6.90(1H, td, J = 7.3, 1.2 Hz), 7.06(1H, td, J = 7.3, 1.2 Hz), 7.167.26(4H, m), 7.58(1H, dd, J = 7.3, 1.2 Hz), 12.94(1H, brs). (Reference Example 10)
2- (4-Chlorophenylthio) benzoic acid
Figure 2008266236
An aqueous potassium hydroxide solution (1 mol / L, 17 mL) was added to a methanol (20 mL) solution of methyl 2- (4-chlorophenylthio) benzoate (the compound of Reference Example 9: 1.57 g), and the mixture was heated to reflux for 2 hours. The reaction mixture was concentrated and acidified with hydrochloric acid (1 mol / L), and the crystals were collected by filtration, washed with water and dried to give 2- (4-chlorophenylthio) benzoic acid (1.44 g) as a colorless powder. It was.
1 H-NMR (400 MHz, DMSO) δ 6.43 (1H, dd, J = 7.3, 1.2 Hz), 6.90 (1H, td, J = 7.3, 1.2 Hz), 7.06 (1H, td, J = 7.3, 1.2 Hz), 7.167.26 (4H, m), 7.58 (1H, dd, J = 7.3, 1.2 Hz), 12.94 (1H, brs).

(参考例11)
4−{3−[2−(4−クロロフェニルチオ)フェニル]ウレイド}ピペリジン−1−カルボン酸tert−ブチル

Figure 2008266236
2−(4−クロロフェニルチオ)安息香酸(参考例10の化合物:150mg)をトルエン(5mL)に溶解させ、ジフェニルホスホリルアジド(0.147mL)とトリエチルアミン(0.080mL)を加え3時間加熱還流した。放冷後、4−アミノ−1−tert−ブトキシカルボニルピペリジン(113mg)を加え、1時間撹拌した。反応液を酢酸エチルで希釈し、有機層を5%クエン酸水溶液、飽和炭酸水素ナトリウム水溶液、水、飽和食塩水で順次洗浄し、無水硫酸ナトリウムで乾燥して溶媒を濃縮した。残渣をシリカゲルクロマトグラフィー(Chromatrex、ヘキサン:酢酸エチル=4:1)により精製し、無色アモルファスとして4−{3−[2−(4−クロロフェニルチオ)フェニル]ウレイド}ピペリジン−1−カルボン酸tert−ブチル(188mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 1.17-1.32(2H, m), 1.45(9H, s), 1.88(2H, d, J = 9.8 Hz), 2.82(2H, t, J = 12.2 Hz), 3.60-2.76(1H, m), 3.92-4.20(2H, m), 4.46(1H, d, J = 7.3 Hz), 6.81(1H, d, J = 7.9 Hz), 7.15(1H, t, J = 7.9 Hz), 7.23-7.31(1H, m), 7.40(2H, d, J = 8.6 Hz), 7.48(2H, d, J = 8.6 Hz), 7.98(1H, dd, J = 7.9, 1.2 Hz). (Reference Example 11)
4- {3- [2- (4-Chlorophenylthio) phenyl] ureido} piperidine-1-carboxylate tert-butyl
Figure 2008266236
2- (4-Chlorophenylthio) benzoic acid (the compound of Reference Example 10: 150 mg) was dissolved in toluene (5 mL), diphenylphosphoryl azide (0.147 mL) and triethylamine (0.080 mL) were added, and the mixture was heated to reflux for 3 hours. . After allowing to cool, 4-amino-1-tert-butoxycarbonylpiperidine (113 mg) was added and stirred for 1 hour. The reaction solution was diluted with ethyl acetate, and the organic layer was washed successively with 5% aqueous citric acid solution, saturated aqueous sodium hydrogen carbonate solution, water and saturated brine, dried over anhydrous sodium sulfate, and the solvent was concentrated. The residue was purified by silica gel chromatography (Chromatrex, hexane: ethyl acetate = 4: 1) to give 4- {3- [2- (4-chlorophenylthio) phenyl] ureido} piperidine-1-carboxylic acid tert- as a colorless amorphous substance. Butyl (188 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.17-1.32 (2H, m), 1.45 (9H, s), 1.88 (2H, d, J = 9.8 Hz), 2.82 (2H, t, J = 12.2 Hz ), 3.60-2.76 (1H, m), 3.92-4.20 (2H, m), 4.46 (1H, d, J = 7.3 Hz), 6.81 (1H, d, J = 7.9 Hz), 7.15 (1H, t, J = 7.9 Hz), 7.23-7.31 (1H, m), 7.40 (2H, d, J = 8.6 Hz), 7.48 (2H, d, J = 8.6 Hz), 7.98 (1H, dd, J = 7.9, 1.2 Hz).

(参考例12)
4−{[2―(4−クロロフェニルチオ)フェニルカルバモイルオキシ]メチル}ピペリジン−1−カルボン酸tert−ブチル

Figure 2008266236
参考例11と同様の方法により、2−(4−クロロフェニルチオ)安息香酸(参考例10の化合物:300mg)、及び4−ヒドロキシメチル−1−tert−ブトキシカルボニルピペリジン(292mg)から無色粉末として4−{[2―(4−クロロフェニルチオ)フェニルカルバモイルオキシ]メチル}ピペリジン−1−カルボン酸tert−ブチル(450mg)を得た。
1H- NMR (400 MHz, CDCl3) δ 1.08-1.23(2H, m), 1.46(9H, s), 1.63(2H, d, J = 13.5 Hz), 1.73-1.85(1H, m), 2.62-2.73(2H, m), 3.97(2H, d, J = 6.7 Hz), 4.02-4.18(2H, m), 6.99(2H, d, J = 8.6 Hz), 7.08(1H, td, J = 7.3, 1.2 Hz), 7.20(2H, d, J = 8.6 Hz), 7.45(1H, td, J = 7.3, 1.2 Hz), 7.55(1H, dd, J = 7.3, 1.2 Hz), 7.63(1H, brs), 8.20(1H, d, J = 7.9 Hz). (Reference Example 12)
4-{[2- (4-Chlorophenylthio) phenylcarbamoyloxy] methyl} piperidine-1-carboxylate tert-butyl
Figure 2008266236
In the same manner as in Reference Example 11, 4- (4-chlorophenylthio) benzoic acid (Compound of Reference Example 10: 300 mg) and 4-hydroxymethyl-1-tert-butoxycarbonylpiperidine (292 mg) were obtained as a colorless powder. -{[2- (4-Chlorophenylthio) phenylcarbamoyloxy] methyl} piperidine-1-carboxylate tert-butyl (450 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.08-1.23 (2H, m), 1.46 (9H, s), 1.63 (2H, d, J = 13.5 Hz), 1.73-1.85 (1H, m), 2.62 -2.73 (2H, m), 3.97 (2H, d, J = 6.7 Hz), 4.02-4.18 (2H, m), 6.99 (2H, d, J = 8.6 Hz), 7.08 (1H, td, J = 7.3 , 1.2 Hz), 7.20 (2H, d, J = 8.6 Hz), 7.45 (1H, td, J = 7.3, 1.2 Hz), 7.55 (1H, dd, J = 7.3, 1.2 Hz), 7.63 (1H, brs ), 8.20 (1H, d, J = 7.9 Hz).

(参考例13)
1−[2−(4−クロロフェニルチオ)フェニル]−3−(ピペリジン−4−イル)ウレア

Figure 2008266236
4−{3−[2−(4−クロロフェニルチオ)フェニル]ウレイド}ピペリジン−1−カルボン酸tert−ブチル(参考例11の化合物:185mg)をジクロロメタン(4mL)に溶解させ、氷冷下トリフルオロ酢酸(0.300mL)を加え、常温で一晩攪拌した。反応液を飽和炭酸水素ナトリウム水溶液によりアルカリ性とし酢酸エチルで抽出し、飽和食塩水で洗浄、硫酸ナトリウムで乾燥後濃縮し、無色アモルファスとして1−[2−(4−クロロフェニルチオ)フェニル]−3−(ピペリジン−4−イル)ウレア(150mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 1.50-1.68(2H, m), 2.00(2H, d, J = 11.0 Hz), 2.84(2H, t, J = 11.0 Hz), 3.26(2H, d, J = 11.0 Hz), 3.70-3.84(1H, m), 5.58(1H, brs), 6.97-7.07(3H, m), 7.17(2H, d, J = 8.6 Hz), 7.37(1H, t, J = 7.9 Hz), 7.42-7.50(2H, m), 8.09(1H, d, J = 7.9 Hz). (Reference Example 13)
1- [2- (4-Chlorophenylthio) phenyl] -3- (piperidin-4-yl) urea
Figure 2008266236
4- {3- [2- (4-Chlorophenylthio) phenyl] ureido} piperidine-1-carboxylate tert-butyl (Compound of Reference Example 11: 185 mg) was dissolved in dichloromethane (4 mL) and trifluoro under ice-cooling. Acetic acid (0.300 mL) was added and stirred overnight at room temperature. The reaction mixture was made alkaline with saturated aqueous sodium hydrogen carbonate solution, extracted with ethyl acetate, washed with saturated brine, dried over sodium sulfate and concentrated to give 1- [2- (4-chlorophenylthio) phenyl] -3- (Piperidin-4-yl) urea (150 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.50-1.68 (2H, m), 2.00 (2H, d, J = 11.0 Hz), 2.84 (2H, t, J = 11.0 Hz), 3.26 (2H, d , J = 11.0 Hz), 3.70-3.84 (1H, m), 5.58 (1H, brs), 6.97-7.07 (3H, m), 7.17 (2H, d, J = 8.6 Hz), 7.37 (1H, t, J = 7.9 Hz), 7.42-7.50 (2H, m), 8.09 (1H, d, J = 7.9 Hz).

(参考例14)
ピペリジン−4−イルメチル2−(4−クロロフェニルチオ)フェニルカーバメイト

Figure 2008266236
参考例13と同様の方法により、4−{[2―(4−クロロフェニルチオ)フェニルカルバモイルオキシ]メチル}ピペリジン−1−カルボン酸tert−ブチル(参考例12の化合物:210mg)から無色アモルファスとしてピペリジン−4−イルメチル2−(4−クロロフェニルチオ)フェニルカーバメイト(165mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 1.24-1.39(2H, m), 1.72(2H, d, J = 12.8Hz), 1.75-1.87(1H, m), 2.67(2H, td, J = 12.2, 2.4 Hz), 3.21(2H, d, J = 12.2 Hz), 3.98(2H, d, J = 6.7 Hz), 6.99(2H, d, J = 8.6 Hz), 7.03(1H, td, J = 7.3, 1.8 Hz), 7.20(2H, d, J = 8.6 Hz), 7.45(1H, td, J = 7.3, 1.8 Hz), 7.54(1H, dd, J = 7.3, 1.8 Hz), 7.64(1H, s), 8.20(1H, d, J = 8.6 Hz). (Reference Example 14)
Piperidin-4-ylmethyl 2- (4-chlorophenylthio) phenyl carbamate
Figure 2008266236
By the same method as Reference Example 13, 4-{[2- (4-chlorophenylthio) phenylcarbamoyloxy] methyl} piperidine-1-carboxylate tert-butyl (compound of Reference Example 12: 210 mg) was converted into colorless amorphous piperidine. -4-ylmethyl 2- (4-chlorophenylthio) phenyl carbamate (165 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.24-1.39 (2H, m), 1.72 (2H, d, J = 12.8Hz), 1.75-1.87 (1H, m), 2.67 (2H, td, J = 12.2, 2.4 Hz), 3.21 (2H, d, J = 12.2 Hz), 3.98 (2H, d, J = 6.7 Hz), 6.99 (2H, d, J = 8.6 Hz), 7.03 (1H, td, J = 7.3, 1.8 Hz), 7.20 (2H, d, J = 8.6 Hz), 7.45 (1H, td, J = 7.3, 1.8 Hz), 7.54 (1H, dd, J = 7.3, 1.8 Hz), 7.64 (1H, s), 8.20 (1H, d, J = 8.6 Hz).

(参考例15)
[2−(4−クロロフェニルチオ)フェニル]メタノール

Figure 2008266236
2−(4−クロロフェニルチオ)ベンズアルデヒド(参考例6の化合物:1.50g)をメタノール(20mL)に溶解させ、水素化ホウ素ナトリウム(232mg)を加え常温で4時間撹拌した。反応液を水にあけ、酢酸エチルで抽出し、有機層を飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥して溶媒を濃縮した。残渣をシリカゲルクロマトグラフィー(Chromatrex、ヘキサン:酢酸エチル=3:1)により精製し、無色油状物として[2−(4−クロロフェニルチオ)フェニル]メタノール(1.49g)を得た。
1H-NMR (400 MHz, CDCl3) δ 4.77(2H, d, J = 6.7 Hz), 7.11(2H, d, J = 8.6 Hz), 7.20-7.31(3H, m), 7.34-7.41(2H, m), 7.53(1H, d, J = 7.3 Hz). (Reference Example 15)
[2- (4-Chlorophenylthio) phenyl] methanol
Figure 2008266236
2- (4-Chlorophenylthio) benzaldehyde (the compound of Reference Example 6: 1.50 g) was dissolved in methanol (20 mL), sodium borohydride (232 mg) was added, and the mixture was stirred at room temperature for 4 hours. The reaction solution was poured into water and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and the solvent was concentrated. The residue was purified by silica gel chromatography (Chromatrex, hexane: ethyl acetate = 3: 1) to give [2- (4-chlorophenylthio) phenyl] methanol (1.49 g) as a colorless oil.
1 H-NMR (400 MHz, CDCl 3 ) δ 4.77 (2H, d, J = 6.7 Hz), 7.11 (2H, d, J = 8.6 Hz), 7.20-7.31 (3H, m), 7.34-7.41 (2H , m), 7.53 (1H, d, J = 7.3 Hz).

(参考例16)
2−[2−(4−クロロフェニルチオ)ベンジル]イソインドリン−1,3−ジオン

Figure 2008266236
[2−(4−クロロフェニルチオ)フェニル]メタノール(参考例15の化合物:705mg)を無水テトラヒドロフラン(20mL)に溶解させ、フタルイミド(490mg)とトリフェニルホスフィン(880mg)、ジイソプロピルアゾジカルボキシラート(0.83mL)を加え、常温で一晩攪拌した。反応液を濃縮し、残渣をシリカゲルクロマトグラフィー(Chromatrex、ヘキサン:酢酸エチル=10:1)により精製し、無色粉末として2−[2−(4−クロロフェニルチオ)ベンジル]イソインドリン−1,3−ジオン(1.01g)を得た。
1H-NMR (400 MHz, CDCl3) δ 5.04(2H, s), 7.06(2H, d, J = 8.6 Hz), 7.15(2H, d, J = 8.6 Hz), 7.24-7.35(3H, m), 7.43(1H, d, J = 7.3 Hz), 7.67-7.75(2H, m), 7.78-7.84(2H, m). (Reference Example 16)
2- [2- (4-Chlorophenylthio) benzyl] isoindoline-1,3-dione
Figure 2008266236
[2- (4-Chlorophenylthio) phenyl] methanol (Compound of Reference Example 15: 705 mg) was dissolved in anhydrous tetrahydrofuran (20 mL), phthalimide (490 mg), triphenylphosphine (880 mg), diisopropyl azodicarboxylate (0 .83 mL) was added and stirred overnight at ambient temperature. The reaction mixture was concentrated, and the residue was purified by silica gel chromatography (Chromatrex, hexane: ethyl acetate = 10: 1) to give 2- [2- (4-chlorophenylthio) benzyl] isoindoline-1,3- as a colorless powder. Dione (1.01 g) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 5.04 (2H, s), 7.06 (2H, d, J = 8.6 Hz), 7.15 (2H, d, J = 8.6 Hz), 7.24-7.35 (3H, m ), 7.43 (1H, d, J = 7.3 Hz), 7.67-7.75 (2H, m), 7.78-7.84 (2H, m).

(参考例17)
[2−(4−クロロフェニルチオ)フェニル]メタナミン

Figure 2008266236
2−[2−(4−クロロフェニルチオ)ベンジル]イソインドリン−1,3−ジオン(参考例16の化合物:1.01g)をエタノール(10mL)に溶解させ、ヒドラジン一水和物(0.38mL)を加え、2時間加熱還流した。反応液をろ過、酢酸エチルで希釈後、飽和炭酸水素ナトリウム水溶液、水、飽和食塩水で順次洗浄した。無水硫酸ナトリウムで乾燥して溶媒を濃縮し無色油状物として[2−(4−クロロフェニルチオ)フェニル]メタナミン(620mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 3.94(2H, s), 7.12(2H, d, J = 8.6 Hz), 7.19-7.27(3H, m), 7.30-7.38(2H, m), 7.44(1H, dd, J = 7.3, 1.8 Hz). (Reference Example 17)
[2- (4-Chlorophenylthio) phenyl] methanamine
Figure 2008266236
2- [2- (4-Chlorophenylthio) benzyl] isoindoline-1,3-dione (Compound of Reference Example 16: 1.01 g) was dissolved in ethanol (10 mL), and hydrazine monohydrate (0.38 mL) was dissolved. ) And heated to reflux for 2 hours. The reaction mixture was filtered, diluted with ethyl acetate, and washed successively with saturated aqueous sodium hydrogen carbonate solution, water and saturated brine. The extract was dried over anhydrous sodium sulfate and the solvent was concentrated to obtain [2- (4-chlorophenylthio) phenyl] methanamine (620 mg) as a colorless oil.
1 H-NMR (400 MHz, CDCl 3 ) δ 3.94 (2H, s), 7.12 (2H, d, J = 8.6 Hz), 7.19-7.27 (3H, m), 7.30-7.38 (2H, m), 7.44 (1H, dd, J = 7.3, 1.8 Hz).

(参考例18)
2−クロロ−N−[2−(4−クロロフェニルチオ)ベンジル]アセトアミド

Figure 2008266236
参考例3と同様の方法により、[2−(4−クロロフェニルチオ)フェニル]メタナミン( 参考例17の化合物:302mg)から無色粉末として2−クロロ−N−[2−(4−クロロフェニルチオ)ベンジル]アセトアミド(283mg)を得た。
1H-NMR (400 MHz, CDCl3 ) δ 4.01(2H, s), 4.60(2H, d, J = 5.5 Hz), 6.93(1H, brs), 7.10(2H, d, J = 8.6 Hz), 7.21-7.28(2H, m), 7.30(1H, td, J = 7.3, 1.2 Hz), 7.41(1H, dd, J = 7.3, 1.2 Hz), 7.45(1H, dd, J = 7.3 , 1.2 Hz). (Reference Example 18)
2-Chloro-N- [2- (4-chlorophenylthio) benzyl] acetamide
Figure 2008266236
In the same manner as in Reference Example 3, 2-chloro-N- [2- (4-chlorophenylthio) benzyl as a colorless powder from [2- (4-chlorophenylthio) phenyl] methanamine (Compound of Reference Example 17: 302 mg) Acetamide (283 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 4.01 (2H, s), 4.60 (2H, d, J = 5.5 Hz), 6.93 (1H, brs), 7.10 (2H, d, J = 8.6 Hz), 7.21-7.28 (2H, m), 7.30 (1H, td, J = 7.3, 1.2 Hz), 7.41 (1H, dd, J = 7.3, 1.2 Hz), 7.45 (1H, dd, J = 7.3, 1.2 Hz) .

(参考例19)
1−tert−ブトキシカルボニル−4−{3−[2−(4−クロロフェニルチオ)ベンジル]ウレイド}ピペリジン

Figure 2008266236
[2−(4−クロロフェニルチオ)フェニル]メタナミン(参考例17の化合物:250mg)をテトラヒドロフラン(2mL)に溶解させ、N,N’−カルボニルジイミダゾール(185mg)を加え1時間撹拌した。反応液に、4−アミノ−1−tert−ブトキシカルボニルピペリジン(221mg)を加え、常温で時間撹拌した。反応液に水を加え、酢酸エチルで抽出し、有機層を飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥して溶媒を濃縮した。残渣をシリカゲルカラムクロマトグラフィー(シリカゲル60,0.040〜0.063mm;ヘキサン:酢酸エチル=2:1)で精製し、淡黄色アモルファスとして1−tert−ブトキシカルボニル−4−{3−[2−(4−クロロフェニルチオ)ベンジル]ウレイド}ピペリジン(112mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 1.21-1.28(2H, m), 1.45(9H, s), 1.80-1.92(2H, m), 2.82(2H, t, J = 10.4 Hz), 3.60-3.72(1H, m), 3.90-4.06(3H, m), 4.44(2H, d, J = 6.1 Hz), 4.61(1H, d, J = 6.1 Hz), 7.08(2H, d, J = 8.6 Hz), 7.21-7.41(5H, m), 7.48(1H, d, J = 7.9 Hz). (Reference Example 19)
1-tert-butoxycarbonyl-4- {3- [2- (4-chlorophenylthio) benzyl] ureido} piperidine
Figure 2008266236
[2- (4-Chlorophenylthio) phenyl] methanamine (the compound of Reference Example 17: 250 mg) was dissolved in tetrahydrofuran (2 mL), N, N′-carbonyldiimidazole (185 mg) was added, and the mixture was stirred for 1 hour. 4-Amino-1-tert-butoxycarbonylpiperidine (221 mg) was added to the reaction solution, and the mixture was stirred at room temperature for an hour. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and the solvent was concentrated. The residue was purified by silica gel column chromatography (silica gel 60, 0.040 to 0.063 mm; hexane: ethyl acetate = 2: 1) to give 1-tert-butoxycarbonyl-4- {3- [2- (4-Chlorophenylthio) benzyl] ureido} piperidine (112 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.21-1.28 (2H, m), 1.45 (9H, s), 1.80-1.92 (2H, m), 2.82 (2H, t, J = 10.4 Hz), 3.60 -3.72 (1H, m), 3.90-4.06 (3H, m), 4.44 (2H, d, J = 6.1 Hz), 4.61 (1H, d, J = 6.1 Hz), 7.08 (2H, d, J = 8.6 Hz), 7.21-7.41 (5H, m), 7.48 (1H, d, J = 7.9 Hz).

(参考例20)
1−[2−(4−クロロフェニルチオ)ベンジル]−3−(ピペリジン−4−イル)ウレア

Figure 2008266236
参考例13と同様の方法により、1−tert−ブトキシカルボニル−4−{3−[2−(4−クロロフェニルチオ)ベンジル]ウレイド}ピペリジン(参考例19の化合物:110mg)から淡黄色粉末として1−[2−(4−クロロフェニルチオ)ベンジル]−3−(ピペリジン−4−イル)ウレア(60.2mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 1.20-1.32(2H, m), 1.75-1.95(3H, m), 2.60-2.71(2H, m), 2.97-3.10(2H, m), 3.50-3.65(1H, m), 4.10(1H, d, J = 6.1 Hz), 4.44(1H, d, J = 6.1 Hz), 4.60-4.70(1H, m), 7.08(2H, d, J = 8.6 Hz), 7.15-7.40(5H, m), 7.49(1H, d, J = 7.3 Hz). (Reference Example 20)
1- [2- (4-Chlorophenylthio) benzyl] -3- (piperidin-4-yl) urea
Figure 2008266236
In the same manner as in Reference Example 13, from 1-tert-butoxycarbonyl-4- {3- [2- (4-chlorophenylthio) benzyl] ureido} piperidine (the compound of Reference Example 19: 110 mg) as a pale yellow powder, 1 -[2- (4-Chlorophenylthio) benzyl] -3- (piperidin-4-yl) urea (60.2 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.20-1.32 (2H, m), 1.75-1.95 (3H, m), 2.60-2.71 (2H, m), 2.97-3.10 (2H, m), 3.50- 3.65 (1H, m), 4.10 (1H, d, J = 6.1 Hz), 4.44 (1H, d, J = 6.1 Hz), 4.60-4.70 (1H, m), 7.08 (2H, d, J = 8.6 Hz) ), 7.15-7.40 (5H, m), 7.49 (1H, d, J = 7.3 Hz).

(参考例21)
2−(ベンジルチオ)−5−(トリフルオロメチル)ベンズアルデヒド

Figure 2008266236
炭酸カリウム(2.2g)をN−メチル−2−ピロリジノン(5mL)に懸濁し、氷冷下、ベンジルメルカプタン(0.62mL)を加え、その後2−フルオロ−5−(トリフルオロメチル)ベンズアルデヒド(1.00g)を滴下した。常温で1日撹拌後、反応液を水にあけ、酢酸エチルで抽出した。有機層を水と飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥後、濃縮した。残渣をシリカゲルカラムクロマトグラフィー(シリカゲル60,0.040〜0.063mm;ヘキサン:酢酸エチル=20:1)で精製し、淡黄色固体として2−(ベンジルチオ)−5−(トリフルオロメチル)ベンズアルデヒド(1.77g)を得た。
1H-NMR (400 MHz, CDCl3) δ 4.22 (2H, s), 7.27-7.36 (5H, m), 7.53 (1H, d, J = 8.0 Hz), 7.69 (1H, dd, J = 8.0, 2.0 Hz), 8.05 (1H, d, J = 2.0 Hz), 10.25 (1H, s). (Reference Example 21)
2- (Benzylthio) -5- (trifluoromethyl) benzaldehyde
Figure 2008266236
Potassium carbonate (2.2 g) was suspended in N-methyl-2-pyrrolidinone (5 mL), benzyl mercaptan (0.62 mL) was added under ice cooling, and then 2-fluoro-5- (trifluoromethyl) benzaldehyde ( 1.00 g) was added dropwise. After stirring at room temperature for 1 day, the reaction mixture was poured into water and extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over anhydrous sodium sulfate, and concentrated. The residue was purified by silica gel column chromatography (silica gel 60, 0.040-0.063 mm; hexane: ethyl acetate = 20: 1), and 2- (benzylthio) -5- (trifluoromethyl) benzaldehyde ( 1.77 g) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 4.22 (2H, s), 7.27-7.36 (5H, m), 7.53 (1H, d, J = 8.0 Hz), 7.69 (1H, dd, J = 8.0, 2.0 Hz), 8.05 (1H, d, J = 2.0 Hz), 10.25 (1H, s).

(参考例22)
[2−(ベンジルチオ)−5−(トリフルオロメチル)フェニル]メタノール

Figure 2008266236
参考例15と同様の方法により、2−(ベンジルチオ)−5−(トリフルオロメチル)ベンズアルデヒド(参考例21の化合物:770mg)から、淡黄色固体として[2−(ベンジルチオ)−5−(トリフルオロメチル)フェニル]メタノール(721mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 1.90 (1H, t, J = 6.3 Hz), 4.17 (2H, s), 4.71 (2H, d, J = 6.3 Hz), 7.25-7.33 (5H, m), 7.41 (1H, d, J = 7.9 Hz), 7.47 (1H, dd, J = 8.3, 1.5 Hz), 7.67 (1H, d, J = 1.5 Hz). (Reference Example 22)
[2- (Benzylthio) -5- (trifluoromethyl) phenyl] methanol
Figure 2008266236
In the same manner as in Reference Example 15, from 2- (benzylthio) -5- (trifluoromethyl) benzaldehyde (the compound of Reference Example 21: 770 mg) as [2- (benzylthio) -5- (trifluoro Methyl) phenyl] methanol (721 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.90 (1H, t, J = 6.3 Hz), 4.17 (2H, s), 4.71 (2H, d, J = 6.3 Hz), 7.25-7.33 (5H, m ), 7.41 (1H, d, J = 7.9 Hz), 7.47 (1H, dd, J = 8.3, 1.5 Hz), 7.67 (1H, d, J = 1.5 Hz).

(参考例23)
2−[2−(ベンジルチオ)−5−(トリフルオロメチル)ベンジル]イソインドリン−1,3−ジオン

Figure 2008266236
参考例16と同様の方法により、[2−(ベンジルチオ)−5−(トリフルオロメチル)フェニル]メタノール(参考例22の化合物:720mg)から、白色固体として2−[2−(ベンジルチオ)−5−(トリフルオロメチル)ベンジル]イソインドリン−1,3−ジオン(617mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 4.22 (2H, s), 4.97 (2H, s), 7.27-7.34 (6H, m), 7.38-7.41 (2H, m), 7.76 (2H, dd, J = 6.0, 3.0 Hz), 7.90 (2H, dd, J = 6.0, 3.0 Hz). (Reference Example 23)
2- [2- (Benzylthio) -5- (trifluoromethyl) benzyl] isoindoline-1,3-dione
Figure 2008266236
In the same manner as in Reference Example 16, from [2- (benzylthio) -5- (trifluoromethyl) phenyl] methanol (the compound of Reference Example 22: 720 mg) as a white solid, 2- [2- (benzylthio) -5 -(Trifluoromethyl) benzyl] isoindoline-1,3-dione (617 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 4.22 (2H, s), 4.97 (2H, s), 7.27-7.34 (6H, m), 7.38-7.41 (2H, m), 7.76 (2H, dd, J = 6.0, 3.0 Hz), 7.90 (2H, dd, J = 6.0, 3.0 Hz).

(参考例24)
[2−(ベンジルチオ)−5−(トリフルオロメチル)フェニル]メタナミン

Figure 2008266236
参考例17と同様の方法により、2−[2−(ベンジルチオ)−5−(トリフルオロメチル)ベンジル]イソインドリン−1,3−ジオン(参考例23の化合物:300mg)から、無色油状物として[2−(ベンジルチオ)−5−(トリフルオロメチル)フェニル]メタナミン(229mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 3.90 (2H, s), 4.18 (2H, s), 7.27-7.33 (5H, m), 7.38 (1H, d, J = 7.9 Hz), 7.43 (1H, dd, J = 7.9, 1.5 Hz), 7.59 (1H, d, J = 1.5 Hz). (Reference Example 24)
[2- (Benzylthio) -5- (trifluoromethyl) phenyl] methanamine
Figure 2008266236
In the same manner as in Reference Example 17, 2- [2- (benzylthio) -5- (trifluoromethyl) benzyl] isoindoline-1,3-dione (the compound of Reference Example 23: 300 mg) was obtained as a colorless oil. [2- (Benzylthio) -5- (trifluoromethyl) phenyl] methanamine (229 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 3.90 (2H, s), 4.18 (2H, s), 7.27-7.33 (5H, m), 7.38 (1H, d, J = 7.9 Hz), 7.43 (1H , dd, J = 7.9, 1.5 Hz), 7.59 (1H, d, J = 1.5 Hz).

(参考例25)
N−[2−(ベンジルチオ)−5−(トリフルオロメチル)ベンジル]−2−クロロアセトアミド

Figure 2008266236
参考例3と同様の方法により、[2−(ベンジルチオ)−5−(トリフルオロメチル)フェニル]メタナミン(参考例24の化合物:229mg)から無色固体としてN−[2−(ベンジルチオ)−5−(トリフルオロメチル)ベンジル]−2−クロロアセトアミド(219mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 4.07 (2H, s), 4.19 (2H, s), 4.52 (2H, d, J = 6.1 Hz), 6.96 (1H, br s), 7.28-7.34 (5H, m), 7.43 (1H, d, J = 8.3 Hz), 7.48 (1H, dd, J = 8.3, 1.8 Hz), 7.53 (1H, d, J = 1.8 Hz). (Reference Example 25)
N- [2- (benzylthio) -5- (trifluoromethyl) benzyl] -2-chloroacetamide
Figure 2008266236
In the same manner as in Reference Example 3, [2- (benzylthio) -5- (trifluoromethyl) phenyl] methanamine (the compound of Reference Example 24: 229 mg) was converted to N- [2- (benzylthio) -5--5 as a colorless solid. (Trifluoromethyl) benzyl] -2-chloroacetamide (219 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 4.07 (2H, s), 4.19 (2H, s), 4.52 (2H, d, J = 6.1 Hz), 6.96 (1H, br s), 7.28-7.34 ( 5H, m), 7.43 (1H, d, J = 8.3 Hz), 7.48 (1H, dd, J = 8.3, 1.8 Hz), 7.53 (1H, d, J = 1.8 Hz).

(参考例26)
2−(ベンジルチオ)−5−(トリフルオロメチル)アニリン

Figure 2008266236
2−アミノ−4−(トリフルオロメチル)チオフェノール(2.30g)をN−メチル−2−ピロリジノン(50mL)に溶かし、カリウムエトキシド(850mg)を加えた。常温で30分撹拌した後、反応液を0℃に冷却して、ベンジルブロミド(1.19mL)を加えた。反応液を常温に戻し、3時間撹拌した。反応液を水にあけ、酢酸エチルで抽出した後、有機層を水と飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥後、濃縮した。残渣をシリカゲルカラムクロマトグラフィー(シリカゲル60,0.040〜0.063mm;ヘキサン:酢酸エチル=20:1)で精製し、淡黄色固体として2−(ベンジルチオ)−5−(トリフルオロメチル)アニリン(1.41g)を得た。
1H-NMR (400 MHz, CDCl3) δ 3.94 (2H, s), 4.40 (2H, br s), 6.83 (1H, dd, J = 7.9, 1.2 Hz), 6.90 (1H, d, J = 1.2 Hz), 7.14-7.16 (2H, m), 7.22-7.28 (4H, m). (Reference Example 26)
2- (Benzylthio) -5- (trifluoromethyl) aniline
Figure 2008266236
2-Amino-4- (trifluoromethyl) thiophenol (2.30 g) was dissolved in N-methyl-2-pyrrolidinone (50 mL) and potassium ethoxide (850 mg) was added. After stirring at room temperature for 30 minutes, the reaction solution was cooled to 0 ° C. and benzyl bromide (1.19 mL) was added. The reaction solution was returned to room temperature and stirred for 3 hours. The reaction mixture was poured into water and extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over anhydrous sodium sulfate and concentrated. The residue was purified by silica gel column chromatography (silica gel 60, 0.040-0.063 mm; hexane: ethyl acetate = 20: 1), and 2- (benzylthio) -5- (trifluoromethyl) aniline ( 1.41 g) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 3.94 (2H, s), 4.40 (2H, br s), 6.83 (1H, dd, J = 7.9, 1.2 Hz), 6.90 (1H, d, J = 1.2 Hz), 7.14-7.16 (2H, m), 7.22-7.28 (4H, m).

(参考例27)
−ベンジル−4−(1,3−ベンゾジオキソール−5−イルカルボニル)−3,5−ジメチルピペラジン

Figure 2008266236
塩化チオニル(8.0mL)にピペロニル酸(1.67g)を加えて2時間加熱還流した。反応液を減圧留去して黄色残渣が得られた。1−ベンジル−2,6−ジメチルピペラジン(WO2005058327に記載の方法で調製した;2.05g)及びトリエチルアミン(7.0mL)をテトラヒドロフラン(20mL)に溶かし、上記黄色残渣のテトラヒドロフラン(5mL)溶液を氷冷下で加えて、更に1時間撹拌後、常温で2時間撹拌した。反応液を酢酸エチルで希釈して、水及び飽和食塩水で順次洗浄後、無水硫酸ナトリウム上乾燥した。溶媒を留去して得られた残渣をシリカゲルカラムクロマトグラフィー(シリカゲル60,0.040〜0.063mm;ヘキサン:酢酸エチル=2:1)で精製し、淡黄色油状物として1−ベンジル−4−(1,3−ベンゾジオキソール−5−イルカルボニル)−3,5−ジメチルピペラジンを得た(3.00g)。
1H-NMR (400 MHz, CDCl3) δ 1.38 (6H, d, J = 7.3 Hz), 2.18 (2H, dd, J = 11.0 and 4.3 Hz), 2.65 (2H, d, J = 11.0 Hz), 4.20-4.40 (2H, br), 5.98 (2H, s), 6.78-6.86 (3H, m), 7.22-7.38 (5H, s). (Reference Example 27)
1 -Benzyl-4- (1,3-benzodioxol-5-ylcarbonyl) -3,5-dimethylpiperazine
Figure 2008266236
Piperonyl acid (1.67 g) was added to thionyl chloride (8.0 mL), and the mixture was heated to reflux for 2 hours. The reaction solution was distilled off under reduced pressure to obtain a yellow residue. 1-Benzyl-2,6-dimethylpiperazine (prepared by the method described in WO2005058327; 2.05 g) and triethylamine (7.0 mL) were dissolved in tetrahydrofuran (20 mL), and a solution of the above yellow residue in tetrahydrofuran (5 mL) was dissolved in ice. The mixture was added under cooling and further stirred for 1 hour, and then stirred at room temperature for 2 hours. The reaction mixture was diluted with ethyl acetate, washed successively with water and saturated brine, and dried over anhydrous sodium sulfate. The residue obtained by distilling off the solvent was purified by silica gel column chromatography (silica gel 60, 0.040 to 0.063 mm; hexane: ethyl acetate = 2: 1) to give 1-benzyl-4 as a pale yellow oil. -(1,3-Benzodioxol-5-ylcarbonyl) -3,5-dimethylpiperazine was obtained (3.00 g).
1 H-NMR (400 MHz, CDCl 3 ) δ 1.38 (6H, d, J = 7.3 Hz), 2.18 (2H, dd, J = 11.0 and 4.3 Hz), 2.65 (2H, d, J = 11.0 Hz), 4.20-4.40 (2H, br), 5.98 (2H, s), 6.78-6.86 (3H, m), 7.22-7.38 (5H, s).

(参考例28)
1−(1,3−ベンゾジオキソール−5−イルカルボニル)−2,6−ジメチルピペラジン

Figure 2008266236
1−ベンジル−4−(1,3−ベンゾジオキソール−5−イルカルボニル)−3,5−ジメチルピペラジン(参考例27の化合物:2.95g)をEtOH(200mL)に溶かし、常温で10%Pd−C(800mg)を加えた。反応液を水素ガス雰囲気下、5kgf/cmの圧力で常温で8時間撹拌した。反応液をろ過後、減圧濃縮した。残渣をシリカゲルカラムクロマトグラフィー(Chromatrex;EtOAc)で精製し、無色固体として1−(1,3−ベンゾジオキソール−5−イルカルボニル)−2,6−ジメチルピペラジンを得た(1.83g)。
1H-NMR (400 MHz, CDCl3) δ 1.35 (6H, d, J = 6.7 Hz), 2.83 (2H, d, J = 12.2 Hz), 2.89 (2H, dd, J = 12.2 and 4.3 Hz), 4.15-4.35 (2H, br), 5.99 (2H, s), 6.80-6.86 (3H, m). (Reference Example 28)
1- (1,3-Benzodioxol-5-ylcarbonyl) -2,6-dimethylpiperazine
Figure 2008266236
1-Benzyl-4- (1,3-benzodioxol-5-ylcarbonyl) -3,5-dimethylpiperazine (compound of Reference Example 27: 2.95 g) was dissolved in EtOH (200 mL), and 10 % Pd-C (800 mg) was added. The reaction solution was stirred at room temperature for 8 hours under a hydrogen gas atmosphere at a pressure of 5 kgf / cm 2 . The reaction solution was filtered and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (Chromatrex; EtOAc) to give 1- (1,3-benzodioxol-5-ylcarbonyl) -2,6-dimethylpiperazine as a colorless solid (1.83 g). .
1 H-NMR (400 MHz, CDCl 3 ) δ 1.35 (6H, d, J = 6.7 Hz), 2.83 (2H, d, J = 12.2 Hz), 2.89 (2H, dd, J = 12.2 and 4.3 Hz), 4.15-4.35 (2H, br), 5.99 (2H, s), 6.80-6.86 (3H, m).

(参考例29)
2,6−ジメチル−1−ピペロニルピペラジン

Figure 2008266236
1−(1,3−ベンゾジオキソール−5−イルカルボニル)−2,6−ジメチルピペラジン(参考例28の化合物:1.00g)をTHF(20mL)とEtO(100mL)に溶かし、常温でリチウムアルミニウムハイドライド(300mg)を加えた。反応液を常温で5時間撹拌した後、反応液を水にあけ、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥後、濃縮した。残渣をシリカゲルカラムクロマトグラフィー(Chromatrex;EtOAc)で精製し、淡黄色油状物として2,6−ジメチル−1−ピペロニルピペラジンを得た(725mg)。
1H-NMR (400 MHz, 400 MHz, CDCl3) δ 1.00 (6H, d, J = 5.5 Hz), 2.42-2.58 (4H, m), 2.87 (2H, d, J = 8.6 Hz), 3.74 (2H, s), 5.93 (2H, s), 6.74 (1H, d, J = 7.9 Hz), 6.79 (1H, dd, J = 7.9 and 1.2 Hz), 6.92 (1H, d, J = 1.2 Hz). (Reference Example 29)
2,6-Dimethyl-1-piperonylpiperazine
Figure 2008266236
1- (1,3-benzodioxol-5-ylcarbonyl) -2,6-dimethylpiperazine (the compound of Reference Example 28: 1.00 g) was dissolved in THF (20 mL) and Et 2 O (100 mL), Lithium aluminum hydride (300 mg) was added at room temperature. After stirring the reaction solution at room temperature for 5 hours, the reaction solution was poured into water and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated. The residue was purified by silica gel column chromatography (Chromatrex; EtOAc) to give 2,6-dimethyl-1-piperonylpiperazine (725 mg) as a pale yellow oil.
1 H-NMR (400 MHz, 400 MHz, CDCl 3 ) δ 1.00 (6H, d, J = 5.5 Hz), 2.42-2.58 (4H, m), 2.87 (2H, d, J = 8.6 Hz), 3.74 ( 2H, s), 5.93 (2H, s), 6.74 (1H, d, J = 7.9 Hz), 6.79 (1H, dd, J = 7.9 and 1.2 Hz), 6.92 (1H, d, J = 1.2 Hz).

(実施例1)
2−(4−ベンゾ[1,3]ジオキソール−5−イルメチル−ピペラジン−1−イル)−N−[2−(4−クロロフェニルチオ)フェニル]アセトアミド

Figure 2008266236
2−クロロ−2’−(4−クロロフェニルチオ)−アセトアニリド(参考例3の化合物:90mg)と1−ピペロニルピペラジン(120mg)とトリエチルアミン(0.3mL)をジクロロメタン(3mL)に溶解し、12時間加熱還流した。反応液を水にあけ、酢酸エチルで抽出し、有機層を水と飽和食塩水で洗浄した。無水硫酸ナトリウムで乾燥後、反応液を濃縮し、残渣をシリカゲルカラムクロマトグラフィー(シリカゲル60,0.040〜0.063mm;ヘキサン:酢酸エチル=2:1→1:1)で精製し、無色油状物として2−(4−ベンゾ[1,3]ジオキソール−5−イルメチル−ピペラジン−1−イル)−N−[2−(4−クロロフェニルチオ)フェニル]アセトアミド(99mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 2.29 (4H, br s), 2.47 (4H, br s), 3.06 (2H, s), 3.35 (2H, s), 5.94 (2H, s), 6.70-6.77 (2H, m), 6.82 (1H, d, J = 1.4 Hz), 6.91 (2H, d, J = 8.6 Hz), 7.13 (1H, td, J = 7.6, 1.4 Hz), 7.19 (2H, d, J = 8.6 Hz), 7.47 (1H, td, J = 7.6, 1.4 Hz), 7.57 (1H, dd, J = 7.6, 1.4 Hz), 8.58 (1H, dd, J = 8.3, 1.4 Hz), 10.25 (1H, s).
MS(FAB+)m/z:469(M+H+).
HRMS(FAB+) for C25H27ClN3O2S [M+H]+: calcd, 496.1462; found, 496.1488. Example 1
2- (4-Benzo [1,3] dioxol-5-ylmethyl-piperazin-1-yl) -N- [2- (4-chlorophenylthio) phenyl] acetamide
Figure 2008266236
2-Chloro-2 ′-(4-chlorophenylthio) -acetanilide (Compound of Reference Example 3: 90 mg), 1-piperonylpiperazine (120 mg) and triethylamine (0.3 mL) were dissolved in dichloromethane (3 mL), Heated to reflux for 12 hours. The reaction mixture was poured into water and extracted with ethyl acetate, and the organic layer was washed with water and saturated brine. After drying over anhydrous sodium sulfate, the reaction mixture is concentrated, and the residue is purified by silica gel column chromatography (silica gel 60, 0.040 to 0.063 mm; hexane: ethyl acetate = 2: 1 → 1: 1), and colorless oil As a product, 2- (4-benzo [1,3] dioxol-5-ylmethyl-piperazin-1-yl) -N- [2- (4-chlorophenylthio) phenyl] acetamide (99 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 2.29 (4H, br s), 2.47 (4H, br s), 3.06 (2H, s), 3.35 (2H, s), 5.94 (2H, s), 6.70 -6.77 (2H, m), 6.82 (1H, d, J = 1.4 Hz), 6.91 (2H, d, J = 8.6 Hz), 7.13 (1H, td, J = 7.6, 1.4 Hz), 7.19 (2H, d, J = 8.6 Hz), 7.47 (1H, td, J = 7.6, 1.4 Hz), 7.57 (1H, dd, J = 7.6, 1.4 Hz), 8.58 (1H, dd, J = 8.3, 1.4 Hz), 10.25 (1H, s).
MS (FAB + ) m / z: 469 (M + H + ).
HRMS (FAB + ) for C 25 H 27 ClN 3 O 2 S [M + H] + : calcd, 496.1462; found, 496.1488.

(実施例2)
3−(4−ベンゾ[1,3]ジオキソール−5−イルメチル−ピペリジン−1−イル)−N−[2−(4−クロロフェニルチオ)フェニル]プロパンアミド

Figure 2008266236
実施例1と同様の方法により、3−クロロ−2’−(4−クロロフェニルチオ)−プロピオアニリド(参考例4の化合物:79.5mg)、及び1−ピペロニルピペラジン(109mg)から無色粉末として3−(4−ベンゾ[1,3]ジオキソール−5−イルメチル−ピペリジン−1−イル)−N−[2−(4−クロロフェニルチオ)フェニル]プロパンアミド(90.8mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 2.25-2.65(12H, m), 3.30(2H, s), 5.94(2H, s), 6.69(1H, d, J = 7.9 Hz), 6.74(1H, d, J = 7.9 Hz), 6.81(1H, d, J = 1.8 Hz), 6.98(2H, d, J = 8.6 Hz), 7.11(1H, td, J = 7.9, 1.2 Hz), 7.22(2H, d, J = 8.6 Hz), 7.42(1H, t, J = 7.9 Hz), 7.46(1H, dd, J = 7.9, 1.2 Hz), 8.28 (1H, d, J = 7.9 Hz), 10.53(1H, brs).
FABMS (M+H): 510
HRMS(FAB+) for C27H29ClN3O2S [M+H]+: calcd, 510.1618; found, 510.1597. (Example 2)
3- (4-Benzo [1,3] dioxol-5-ylmethyl-piperidin-1-yl) -N- [2- (4-chlorophenylthio) phenyl] propanamide
Figure 2008266236
In the same manner as in Example 1, from 3-chloro-2 ′-(4-chlorophenylthio) -propioanilide (the compound of Reference Example 4: 79.5 mg) and 1-piperonylpiperazine (109 mg) 3- (4-Benzo [1,3] dioxol-5-ylmethyl-piperidin-1-yl) -N- [2- (4-chlorophenylthio) phenyl] propanamide (90.8 mg) was obtained as a powder.
1 H-NMR (400 MHz, CDCl 3 ) δ 2.25-2.65 (12H, m), 3.30 (2H, s), 5.94 (2H, s), 6.69 (1H, d, J = 7.9 Hz), 6.74 (1H , d, J = 7.9 Hz), 6.81 (1H, d, J = 1.8 Hz), 6.98 (2H, d, J = 8.6 Hz), 7.11 (1H, td, J = 7.9, 1.2 Hz), 7.22 (2H , d, J = 8.6 Hz), 7.42 (1H, t, J = 7.9 Hz), 7.46 (1H, dd, J = 7.9, 1.2 Hz), 8.28 (1H, d, J = 7.9 Hz), 10.53 (1H , brs).
FABMS (M + H): 510
HRMS (FAB + ) for C 27 H 29 ClN 3 O 2 S [M + H] + : calcd, 510.1618; found, 510.1597.

(実施例3)
2−(4−ベンゾ[1,3]ジオキソール−5−イルメチル−ピペラジン−1−イル)−N−[2−(4−クロロフェニルチオ)フェニル]−2−メチルプロパンアミド

Figure 2008266236
2−ブロモ−N−[2−(4−クロロフェニルチオ)フェニル]−2−メチルプロピルアミド(参考例5の化合物:100mg)をN,N−ジメチルアセトアミド(5mL)に溶解させ、炭酸カリウム(75mg)、1−ピペロニルピペラジン(115mg)を加え、80℃で4時間加熱撹拌した。反応液を水にあけ、酢酸エチルで抽出し、有機層を水、飽和食塩水で順次洗浄し、無水硫酸ナトリウムで乾燥して溶媒を濃縮した。残渣をシリカゲルカラムクロマトグラフィー(シリカゲル60,0.040〜0.063mm;ヘキサン:酢酸エチル=5:1→1:1)で精製し、無色アモルファスとして2−(4−ベンゾ[1,3]ジオキソール−5−イルメチル−ピペラジン−1−イル)−N−[2−(4−クロロフェニルチオ)フェニル]−2−メチルプロパンアミド(88.0mg)得た。
1H-NMR (400 MHz, CDCl3) δ 1.11(6H, s), 2.17-2.55(8H, m), 3.34(2H, s), 5.94(2H, s), 6.68-6.76(2H, m), 6.81(1H, s), 6.91(2H, d, J = 8.6 Hz), 7.11(1H, td, J = 7.3, 1.2 Hz), 7.20(2H, d, J = 8.6 Hz), 7.47(1H, t, td, J = 7.3 Hz), 7.57(1H, dd, J = 7.3, 1.2 Hz), 8.60(1H, dd, J = 7.3, 1.2 Hz), 10.37(1H, s).
ESIMS (M+H): 524
HRMS(ESI+) for C28H31ClN3O3S [M+H]+: calcd, 524.17746; found, 524.17527. (Example 3)
2- (4-Benzo [1,3] dioxol-5-ylmethyl-piperazin-1-yl) -N- [2- (4-chlorophenylthio) phenyl] -2-methylpropanamide
Figure 2008266236
2-Bromo-N- [2- (4-chlorophenylthio) phenyl] -2-methylpropylamide (the compound of Reference Example 5: 100 mg) was dissolved in N, N-dimethylacetamide (5 mL), and potassium carbonate (75 mg) was dissolved. ), 1-piperonylpiperazine (115 mg) was added, and the mixture was heated and stirred at 80 ° C. for 4 hours. The reaction solution was poured into water and extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine, dried over anhydrous sodium sulfate, and the solvent was concentrated. The residue was purified by silica gel column chromatography (silica gel 60, 0.040 to 0.063 mm; hexane: ethyl acetate = 5: 1 → 1: 1) to give 2- (4-benzo [1,3] dioxole as a colorless amorphous substance. -5-ylmethyl-piperazin-1-yl) -N- [2- (4-chlorophenylthio) phenyl] -2-methylpropanamide (88.0 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.11 (6H, s), 2.17-2.55 (8H, m), 3.34 (2H, s), 5.94 (2H, s), 6.68-6.76 (2H, m) , 6.81 (1H, s), 6.91 (2H, d, J = 8.6 Hz), 7.11 (1H, td, J = 7.3, 1.2 Hz), 7.20 (2H, d, J = 8.6 Hz), 7.47 (1H, t, td, J = 7.3 Hz), 7.57 (1H, dd, J = 7.3, 1.2 Hz), 8.60 (1H, dd, J = 7.3, 1.2 Hz), 10.37 (1H, s).
ESIMS (M + H): 524
HRMS (ESI + ) for C 28 H 31 ClN 3 O 3 S [M + H] + : calcd, 524.17746; found, 524.17527.

(実施例4)
(1−[4−(ベンゾ[1,3]ジオキソール−5−イルメチル)ピペラジン−1−イル]−3−[2−(4−クロロフェニルチオ)フェニル]プロペン−1−オン

Figure 2008266236
(E)−3−[2−(4−クロロフェニルチオ)フェニル]アクリル酸(参考例8の化合物:100mg)、1−ピペロニルピペラジン(120mg)、1−ヒドロキシベンゾトリアゾール(60mg)をジクロロメタン(4mL)に溶かし、N−エチル−N’−3−ジメチルアミノプロピルカルボジイミド塩酸塩(120mg)を加え、常温で一日撹拌した。反応液を水にあけ、酢酸エチルで抽出し、有機層を水と飽和食塩水で洗浄した。無水硫酸ナトリウムで乾燥後、反応液を濃縮し、残渣をシリカゲルカラムクロマトグラフィー(シリカゲル60,0.040〜0.063mm;ヘキサン:酢酸エチル=1:1)で精製し、無色アモルファスとして(1−[4−(ベンゾ[1,3]ジオキソール−5−イルメチル)ピペラジン−1−イル]−3−[2−(4−クロロフェニルチオ)フェニル]プロペン−1−オン(152mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 2.45 (4H, br s), 3.47 (2H, s), 3.56 (2H, br s), 3.72 (2H, br s), 5.94 (2H, s), 6.70-6.75 (3H, m), 6.85 (1H, s), 7.12 (2H, d, J = 8.6 Hz), 7.21 (2H, d, J = 8.6 Hz), 7.26-7.37 (3H, m), 7.59 (1H, dd, J = 7.3, 1.8 Hz), 8.03 (1H, d, J = 15.3 Hz).
ESIMS (M+H): 493
HRMS(FAB+) for C27H25ClN2O3S [M+H]+: calcd, 493.1353; found, 493.1350. Example 4
(1- [4- (Benzo [1,3] dioxol-5-ylmethyl) piperazin-1-yl] -3- [2- (4-chlorophenylthio) phenyl] propen-1-one
Figure 2008266236
(E) -3- [2- (4-Chlorophenylthio) phenyl] acrylic acid (the compound of Reference Example 8: 100 mg), 1-piperonylpiperazine (120 mg) and 1-hydroxybenzotriazole (60 mg) were added to dichloromethane ( 4 mL), N-ethyl-N′-3-dimethylaminopropylcarbodiimide hydrochloride (120 mg) was added, and the mixture was stirred at room temperature for one day. The reaction mixture was poured into water and extracted with ethyl acetate, and the organic layer was washed with water and saturated brine. After drying over anhydrous sodium sulfate, the reaction mixture is concentrated, and the residue is purified by silica gel column chromatography (silica gel 60, 0.040-0.063 mm; hexane: ethyl acetate = 1: 1) to give colorless amorphous (1- [4- (Benzo [1,3] dioxol-5-ylmethyl) piperazin-1-yl] -3- [2- (4-chlorophenylthio) phenyl] propen-1-one (152 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 2.45 (4H, br s), 3.47 (2H, s), 3.56 (2H, br s), 3.72 (2H, br s), 5.94 (2H, s), 6.70-6.75 (3H, m), 6.85 (1H, s), 7.12 (2H, d, J = 8.6 Hz), 7.21 (2H, d, J = 8.6 Hz), 7.26-7.37 (3H, m), 7.59 (1H, dd, J = 7.3, 1.8 Hz), 8.03 (1H, d, J = 15.3 Hz).
ESIMS (M + H): 493
HRMS (FAB + ) for C 27 H 25 ClN 2 O 3 S [M + H] + : calcd, 493.1353; found, 493.1350.

(実施例5)
1−[1−(ベンゾ[1,3]ジオキソール−5−イルメチル)ピペリジン−4−イル]−3−[2−(4−クロロフェニルチオ)フェニル]ウレア

Figure 2008266236
1−[2−(4−クロロフェニルチオ)フェニル]−3−(ピペリジン−4−イル)ウレア(参考例13の化合物:70.0mg)をジクロロメタン(2mL)に溶解させ、ピペロナール(30.0mg)、酢酸(0.025mL)、水素化トリアセトキシホウ素ナトリウム(61.0mg)を加え、常温で8時間撹拌した。反応液に水を加え、飽和炭酸水素ナトリウム水溶液で塩基性とした後、酢酸エチルで抽出し、有機層を水、飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥して溶媒を濃縮した。残渣をシリカゲルクロマトグラフィー(Chromatrex,ヘキサン:酢酸エチル=2:1)により精製し、無色粉末として1−[1−(ベンゾ[1,3]ジオキソール−5−イルメチル)ピペリジン−4−イル]−3−[2−(4−クロロフェニルチオ)フェニル]ウレア(49.2mg)得た。
1H-NMR (400 MHz, CDCl3) δ 1.32-1.45(2H, m), 1.87(2H, d, J = 11.0 Hz), 2.04(2H, t, J = 11.0 Hz), 2.76(2H, d, J = 11.0 Hz), 3.28(2H, s), 3.46-3.60(1H, m), 4.35(1H, d, J = 7.3 Hz), 5.94(2H, s), 6.68-6.76(2H, m), 6.83(1H, s), 6.97(2H, d, J = 8.6 Hz), 7.04(1H, td, J = 7.3, 1.2 Hz), 7.15(1H, brs), 7.20(2H, d, J = 8.6 Hz), 7.42(1H, t, J = 7.3 Hz), 7.49(1H, dd, J = 7.3, 1.2 Hz), 8.20(1H, d, J = 7.3 Hz).
ESIMS (M+H): 496
HRMS(FAB+) for C26H27ClN3O3S [M+H]+: calcd, 496.14616; found, 496.14541. (Example 5)
1- [1- (Benzo [1,3] dioxol-5-ylmethyl) piperidin-4-yl] -3- [2- (4-chlorophenylthio) phenyl] urea
Figure 2008266236
1- [2- (4-Chlorophenylthio) phenyl] -3- (piperidin-4-yl) urea (Compound of Reference Example 13: 70.0 mg) was dissolved in dichloromethane (2 mL) and piperonal (30.0 mg) was dissolved. , Acetic acid (0.025 mL) and sodium triacetoxyborohydride (61.0 mg) were added, and the mixture was stirred at room temperature for 8 hours. Water was added to the reaction mixture, and the mixture was basified with saturated aqueous sodium hydrogen carbonate solution and extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over anhydrous sodium sulfate, and the solvent was concentrated. The residue was purified by silica gel chromatography (Chromatrex, hexane: ethyl acetate = 2: 1) to give 1- [1- (benzo [1,3] dioxol-5-ylmethyl) piperidin-4-yl] -3 as a colorless powder. -[2- (4-Chlorophenylthio) phenyl] urea (49.2 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.32-1.45 (2H, m), 1.87 (2H, d, J = 11.0 Hz), 2.04 (2H, t, J = 11.0 Hz), 2.76 (2H, d , J = 11.0 Hz), 3.28 (2H, s), 3.46-3.60 (1H, m), 4.35 (1H, d, J = 7.3 Hz), 5.94 (2H, s), 6.68-6.76 (2H, m) , 6.83 (1H, s), 6.97 (2H, d, J = 8.6 Hz), 7.04 (1H, td, J = 7.3, 1.2 Hz), 7.15 (1H, brs), 7.20 (2H, d, J = 8.6 Hz), 7.42 (1H, t, J = 7.3 Hz), 7.49 (1H, dd, J = 7.3, 1.2 Hz), 8.20 (1H, d, J = 7.3 Hz).
ESIMS (M + H): 496
HRMS (FAB + ) for C 26 H 27 ClN 3 O 3 S [M + H] + : calcd, 496.14616; found, 496.14541.

(実施例6)
[1−(ベンゾ[1,3]ジオキソール−5−イルメチル)ピペリジン−4−イル]メチル2−(4−クロロフェニルチオ)フェニルカーバメイト

Figure 2008266236
実施例5と同様の方法により、ピペリジン−4−イルメチル2−(4−クロロフェニルチオ)フェニルカーバメイト(参考例14の化合物:160mg)から無色油状物として[1−(ベンゾ[1,3]ジオキソール−5−イルメチル)ピペリジン−4−イル]メチル2−(4−クロロフェニルチオ)フェニルカーバメイト(123mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 1.23-1.35(3H, m), 1.55-1.67(2H, m), 1.91(2H, t, J = 11.6 Hz), 2.87(2H, d, J = 11.6 Hz), 3.39(2H, s), 3.97(2H, d, J = 5.5 Hz), 5.93(2H, s), 6.60-6.72(2H, m), 6.84(1H, s), 6.98(2H, d, J = 8.6 Hz), 7.07(1H, td, J = 7.3, 1.2 Hz), 7.19(2H, d, J = 8.6, Hz), 7.44(1H, td, J = 7.3, 1.2 Hz), 7.54(1H, dd, J = 7.3, 1.2 Hz), 7.62(1H, brs), 8.21(1H, d, J = 7.9 Hz).
ESIMS (M+H): 511
HRMS(FAB+) for C27H28ClN2O4S [M+H]+: calcd, 511.14683; found, 511.14564. (Example 6)
[1- (Benzo [1,3] dioxol-5-ylmethyl) piperidin-4-yl] methyl 2- (4-chlorophenylthio) phenylcarbamate
Figure 2008266236
In the same manner as in Example 5, piperidin-4-ylmethyl 2- (4-chlorophenylthio) phenyl carbamate (the compound of Reference Example 14: 160 mg) was converted into [1- (benzo [1,3] dioxole- 5-ylmethyl) piperidin-4-yl] methyl 2- (4-chlorophenylthio) phenyl carbamate (123 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.23-1.35 (3H, m), 1.55-1.67 (2H, m), 1.91 (2H, t, J = 11.6 Hz), 2.87 (2H, d, J = 11.6 Hz), 3.39 (2H, s), 3.97 (2H, d, J = 5.5 Hz), 5.93 (2H, s), 6.60-6.72 (2H, m), 6.84 (1H, s), 6.98 (2H, d, J = 8.6 Hz), 7.07 (1H, td, J = 7.3, 1.2 Hz), 7.19 (2H, d, J = 8.6, Hz), 7.44 (1H, td, J = 7.3, 1.2 Hz), 7.54 (1H, dd, J = 7.3, 1.2 Hz), 7.62 (1H, brs), 8.21 (1H, d, J = 7.9 Hz).
ESIMS (M + H): 511
HRMS (FAB + ) for C 27 H 28 ClN 2 O 4 S [M + H] + : calcd, 511.14683; found, 511.14564.

(実施例7)
2−(4−ベンゾ[1,3]ジオキソール−5−イルメチル−ピペラジン−1−イル)−N−[2−(4−クロロフェニルチオ)ベンジル]アセトアミド

Figure 2008266236
実施例1と同様の方法により、2−クロロ−N−[2−(4−クロロフェニルチオ)ベンジル]アセトアミド(参考例18の化合物:80.5mg)から無色粉末として2−(4−ベンゾ[1,3]ジオキソール−5−イルメチル−ピペラジン−1−イル)−N−[2−(4−クロロフェニルチオ)ベンジル]−アセトアミド(116mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 2.30-2.54(8H, m), 2.98(2H, s), 3.39(2H, s), 4.56(2H, d, J = 6.1 Hz), 5.94(2H, s), 6.69-6.76(2H, m), 6.82(1H, s), 7.10(2H, d, J = 8.6 Hz), 7.22-7.39(5H, m), 7.43(1H, d, J = 7.3 Hz), 7.59(1H, brs).
ESIMS (M+H): 510
HRMS(FAB+) for C27H29ClN3O3S [M+H]+: calcd, 510.16181; found, 510.16131.
元素分析値 found: C, 63.54; H, 5.63; N, 8.02. calcd. for C27H28ClN3O3S: C, 63.58; H, 5.53; N, 8.24. (Example 7)
2- (4-Benzo [1,3] dioxol-5-ylmethyl-piperazin-1-yl) -N- [2- (4-chlorophenylthio) benzyl] acetamide
Figure 2008266236
In the same manner as in Example 1, 2-chloro-N- [2- (4-chlorophenylthio) benzyl] acetamide (the compound of Reference Example 18: 80.5 mg) was converted into 2- (4-benzo [1 , 3] dioxol-5-ylmethyl-piperazin-1-yl) -N- [2- (4-chlorophenylthio) benzyl] -acetamide (116 mg).
1 H-NMR (400 MHz, CDCl 3 ) δ 2.30-2.54 (8H, m), 2.98 (2H, s), 3.39 (2H, s), 4.56 (2H, d, J = 6.1 Hz), 5.94 (2H , s), 6.69-6.76 (2H, m), 6.82 (1H, s), 7.10 (2H, d, J = 8.6 Hz), 7.22-7.39 (5H, m), 7.43 (1H, d, J = 7.3 Hz), 7.59 (1H, brs).
ESIMS (M + H): 510
HRMS (FAB + ) for C 27 H 29 ClN 3 O 3 S [M + H] + : calcd, 510.16181; found, 510.16131.
Elemental analysis found: C, 63.54; H, 5.63; N, 8.02.calcd.for C 27 H 28 ClN 3 O 3 S: C, 63.58; H, 5.53; N, 8.24.

(実施例8)
2−[4−(1,3−ベンゾジオキソール−5−イル)ピペラジン−1−イル]−N−[2−(4−クロロフェニルチオ)ベンジル]アセトアミド

Figure 2008266236
2−クロロ−N−[2−(4−クロロフェニルチオ)ベンジル]アセトアミド(参考例18の化合物:50.0mg)をジクロロメタン(3mL)に溶かし、1−フェニルピペラジン(60.0mg)とジイソプロピルエチルアミン(0.2mL)を加え、常温で1日撹拌した。反応液を水にあけ、酢酸エチルで抽出し、有機層を水と飽和食塩水で洗浄した。無水硫酸ナトリウムで乾燥後、反応液を濃縮し、残渣をシリカゲルカラムクロマトグラフィー(シリカゲル60,0.040〜0.063mm;ヘキサン:酢酸エチル=2:1)で精製し、無色油状物として2−[4−(1,3−ベンゾジオキソール−5−イル)ピペラジン−1−イル]−N−[2−(4−クロロフェニルチオ)ベンジル]アセトアミド(60.0 mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 2.62 (4H, t, J = 4.9 Hz), 3.01 (4H, t, J = 4.9 Hz), 3.04 (2H, s), 4.57 (2H, d, J = 6.1 Hz), 5.90 (2H, s), 6.32 (1H, dd, J = 8.6, 2.4 Hz), 6.52 (1H, d, J = 2.4 Hz), 6.72 (1H, d, J = 8.6 Hz), 7.06-7.12 (2H, m), 7.20-7.38 (4H, m), 7.45 (1H, dd, J = 7.3, 1.2 Hz), 7.58 (1H, d, J = 5.5 Hz). (Example 8)
2- [4- (1,3-Benzodioxol-5-yl) piperazin-1-yl] -N- [2- (4-chlorophenylthio) benzyl] acetamide
Figure 2008266236
2-Chloro-N- [2- (4-chlorophenylthio) benzyl] acetamide (the compound of Reference Example 18: 50.0 mg) was dissolved in dichloromethane (3 mL), and 1-phenylpiperazine (60.0 mg) and diisopropylethylamine ( 0.2 mL) was added and stirred at room temperature for 1 day. The reaction mixture was poured into water and extracted with ethyl acetate, and the organic layer was washed with water and saturated brine. After drying over anhydrous sodium sulfate, the reaction mixture is concentrated, and the residue is purified by silica gel column chromatography (silica gel 60, 0.040-0.063 mm; hexane: ethyl acetate = 2: 1) to give 2- [4- (1,3-Benzodioxol-5-yl) piperazin-1-yl] -N- [2- (4-chlorophenylthio) benzyl] acetamide (60.0 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 2.62 (4H, t, J = 4.9 Hz), 3.01 (4H, t, J = 4.9 Hz), 3.04 (2H, s), 4.57 (2H, d, J = 6.1 Hz), 5.90 (2H, s), 6.32 (1H, dd, J = 8.6, 2.4 Hz), 6.52 (1H, d, J = 2.4 Hz), 6.72 (1H, d, J = 8.6 Hz), 7.06-7.12 (2H, m), 7.20-7.38 (4H, m), 7.45 (1H, dd, J = 7.3, 1.2 Hz), 7.58 (1H, d, J = 5.5 Hz).

(実施例9)
2−[4−(1,3−ベンゾジオキソール−5−イルカルボニル)−3,5−ジメチルピペラジン−1−イル]−N−[2−(4−クロロフェニルチオ)ベンジル]アセトアミド

Figure 2008266236
実施例1と同様の方法により、2−クロロ−N−[2−(4−クロロフェニルチオ)ベンジル]アセトアミド(参考例18の化合物:130mg)と、1−(1,3−ベンゾジオキソール−5−イルカルボニル)−2,6−ジメチルピペラジン(111mg)から、無色アモルファスとして2−[4−(1,3−ベンゾジオキソール−5−イルカルボニル)−3,5−ジメチルピペラジン−1−イル]−N−[2−(4−クロロフェニルチオ)ベンジル]アセトアミド(220mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 1.27 (6H, d, J = 7.3 Hz), 2.35 (2H, dd, J = 11.0 and 4.2 Hz), 2.60 (2H, d, J = 11.0 Hz), 3.01 (2H, s), 4.20-4.40 (2H, br), 4.59 (1H, d, J = 6.1 Hz), 5.99 (2H, s), 6.78-6.73 (3H, m), 7.07-7.12 (2H, m), 7.22-7.35 (4H, m), 7.38-7.46 (2H, m). Example 9
2- [4- (1,3-Benzodioxol-5-ylcarbonyl) -3,5-dimethylpiperazin-1-yl] -N- [2- (4-chlorophenylthio) benzyl] acetamide
Figure 2008266236
In the same manner as in Example 1, 2-chloro-N- [2- (4-chlorophenylthio) benzyl] acetamide (the compound of Reference Example 18: 130 mg) and 1- (1,3-benzodioxole- From 5-ylcarbonyl) -2,6-dimethylpiperazine (111 mg) as colorless amorphous, 2- [4- (1,3-benzodioxol-5-ylcarbonyl) -3,5-dimethylpiperazine-1- Yl] -N- [2- (4-chlorophenylthio) benzyl] acetamide (220 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.27 (6H, d, J = 7.3 Hz), 2.35 (2H, dd, J = 11.0 and 4.2 Hz), 2.60 (2H, d, J = 11.0 Hz), 3.01 (2H, s), 4.20-4.40 (2H, br), 4.59 (1H, d, J = 6.1 Hz), 5.99 (2H, s), 6.78-6.73 (3H, m), 7.07-7.12 (2H, m), 7.22-7.35 (4H, m), 7.38-7.46 (2H, m).

(実施例10)
N−[2−(4−クロロフェニルチオ)ベンジル]−2−(3,5−ジメチル−4−ピペロニルピペラジン−1−イル)アセトアミド

Figure 2008266236
実施例1と同様の方法により、2−クロロ−N−[2−(4−クロロフェニルチオ)ベンジル]アセトアミド(参考例18の化合物:130mg)と、2,6−ジメチル−1−ピペロニルピペラジン(105mg)とジイソプロピルエチルアミン(0.28mL)から、無色固体としてN−[2−(4−クロロフェニルチオ)ベンジル]−2−(3,5−ジメチル−4−ピペロニルピペラジン−1−イル)アセトアミド(215mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 0.98 (6H, d, J = 6.1 Hz), 2.00-2.09 (2H, m), 2.50-2.62 (4H, m), 2.91 (2H, s), 3.70 (2H, s), 4.54 (2H, d, J = 6.7 Hz), 5.93 (2H, s), 6.72-6.80 (2H, m), 6.88 (1H, d, J = 1.2 Hz), 7.03-7.09 (2H, m), 7.20-7.38 (5H, m), 7.43 (1H, dd, J = 7.3 and 1.2 Hz), 7.56 (1H, t, J = 6.1 Hz). (Example 10)
N- [2- (4-Chlorophenylthio) benzyl] -2- (3,5-dimethyl-4-piperonylpiperazin-1-yl) acetamide
Figure 2008266236
In the same manner as in Example 1, 2-chloro-N- [2- (4-chlorophenylthio) benzyl] acetamide (the compound of Reference Example 18: 130 mg) and 2,6-dimethyl-1-piperonylpiperazine (105 mg) and diisopropylethylamine (0.28 mL) as a colorless solid N- [2- (4-chlorophenylthio) benzyl] -2- (3,5-dimethyl-4-piperonylpiperazin-1-yl) Acetamide (215 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 0.98 (6H, d, J = 6.1 Hz), 2.00-2.09 (2H, m), 2.50-2.62 (4H, m), 2.91 (2H, s), 3.70 (2H, s), 4.54 (2H, d, J = 6.7 Hz), 5.93 (2H, s), 6.72-6.80 (2H, m), 6.88 (1H, d, J = 1.2 Hz), 7.03-7.09 ( 2H, m), 7.20-7.38 (5H, m), 7.43 (1H, dd, J = 7.3 and 1.2 Hz), 7.56 (1H, t, J = 6.1 Hz).

(実施例11)
1−[1−(ベンゾ[1,3]ジオキソール−5−イルメチル)ピペリジン−4−イル]−3−[2−(4−クロロフェニルチオ)ベンジル]ウレア

Figure 2008266236
実施例5と同様の方法により、1−[2−(4−クロロフェニルチオ)ベンジル]−3−(ピペリジン−4−イル)ウレア(参考例20の化合物:60.0mg)から無色粉末として1−[1−(ベンゾ[1,3]ジオキソール−5−イルメチル)ピペリジン−4−イル]−3−[2−(4−クロロフェニルチオ)ベンジル]ウレア(41.5mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 1.29-1.43(2H, m), 1.86(2H, d, J = 11.0 Hz), 2.04(2H, t, J = 11.0 Hz), 2.74(2H, d, J = 11.0 Hz), 3.37(2H, s), 3.42-3.55(1H, m), 4.00(1H, d, J = 7.9 Hz), 4.44(2H, d, J = 6.1 Hz), 4.59(1H, brt, J = 6.1 Hz), 5.93(2H, s), 6.67-6.77(2H, m), 6.83(1H, s), 7.07(2H, d, J = 8.6 Hz), 7.20-7.29(3H, m), 7.30-7.40(2H, m), 7.49(1H, d, J = 9.2 Hz).
ESIMS (M+H): 510
HRMS(FAB+) for C27H29ClN3O3S [M+H]+: calcd, 510.16181; found, 510.16167.
元素分析値 found: C, 63.48; H, 5.55; N, 8.08. calcd. for C27H28ClN3O3S: C, 63.58; H, 5.53; N, 8.24. (Example 11)
1- [1- (Benzo [1,3] dioxol-5-ylmethyl) piperidin-4-yl] -3- [2- (4-chlorophenylthio) benzyl] urea
Figure 2008266236
In the same manner as in Example 5, 1- [2- (4-chlorophenylthio) benzyl] -3- (piperidin-4-yl) urea (the compound of Reference Example 20: 60.0 mg) was obtained as a colorless powder. [1- (Benzo [1,3] dioxol-5-ylmethyl) piperidin-4-yl] -3- [2- (4-chlorophenylthio) benzyl] urea (41.5 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.29-1.43 (2H, m), 1.86 (2H, d, J = 11.0 Hz), 2.04 (2H, t, J = 11.0 Hz), 2.74 (2H, d , J = 11.0 Hz), 3.37 (2H, s), 3.42-3.55 (1H, m), 4.00 (1H, d, J = 7.9 Hz), 4.44 (2H, d, J = 6.1 Hz), 4.59 (1H , brt, J = 6.1 Hz), 5.93 (2H, s), 6.67-6.77 (2H, m), 6.83 (1H, s), 7.07 (2H, d, J = 8.6 Hz), 7.20-7.29 (3H, m), 7.30-7.40 (2H, m), 7.49 (1H, d, J = 9.2 Hz).
ESIMS (M + H): 510
HRMS (FAB + ) for C 27 H 29 ClN 3 O 3 S [M + H] + : calcd, 510.16181; found, 510.16167.
Elemental analysis found: C, 63.48; H, 5.55; N, 8.08.calcd.for C 27 H 28 ClN 3 O 3 S: C, 63.58; H, 5.53; N, 8.24.

(実施例12)
N−{3−[4−(ベンゾ[1,3]ジオキソール−5−イルメチル)ピペラジン−1−イル]プロピル}−2−(4−クロロフェニルチオ)アニリン

Figure 2008266236
3−(4−ベンゾ[1,3]ジオキソール−5−イルメチル−ピペリジン−1−イル)−N−[2−(4−クロロフェニルチオ)フェニル]プロパンアミド(実施例2の化合物:209mg)を無水テトラヒドロフラン(5mL)に溶解させ、ボラン−硫化ジメチル(0.08mL)を加え、1時間加熱還流した。放冷後、反応液に水を滴下し、塩酸水溶液(2mL、2mol/L)を加え1時間加熱還流した。放冷後、水酸化ナトリウム水溶液(1mol/L)を加えアルカリ性とし、酢酸エチルで抽出した。有機層を水、飽和食塩水で順次洗浄し、無水硫酸ナトリウムで乾燥して溶媒を濃縮した。残渣をシリカゲルカラムクロマトグラフィー(シリカゲル60,0.040〜0.063mm;ヘキサン:酢酸エチル=3:1)で精製し、無色油状物としてN−{3−[4−(ベンゾ[1,3]ジオキソール−5−イルメチル)ピペラジン−1−イル]プロピル}−2−(4−クロロフェニルチオ)アニリン(190mg)を得た。
1H-NMR (400 MHz, CDCl3) δ 1.71(2H, qui, J = 6.7 Hz), 2.24-2.54(10H, m), 3.17(2H, q, J = 6.7 Hz), 3.39(2H, s), 5.19(1H, brs), 6.63-6.70(2H, m), 6.84(1H, s), 6.96(2H, d, J = 8.6 Hz), 7.16(2H, d, J = 8.6 Hz), 7.31(1H, t, J = 7.3 Hz), 7.43(1H, dd, J = 7.3, 1.2 Hz).
ESIMS (M+H): 496
HRMS(ESI+) for C27H30ClN3O2S [M+H]+: calcd, 496.18255; found, 496.17824. (Example 12)
N- {3- [4- (Benzo [1,3] dioxol-5-ylmethyl) piperazin-1-yl] propyl} -2- (4-chlorophenylthio) aniline
Figure 2008266236
3- (4-Benzo [1,3] dioxol-5-ylmethyl-piperidin-1-yl) -N- [2- (4-chlorophenylthio) phenyl] propanamide (the compound of Example 2: 209 mg) was anhydrous. Dissolve in tetrahydrofuran (5 mL), add borane-dimethyl sulfide (0.08 mL), and heat to reflux for 1 hour. After allowing to cool, water was added dropwise to the reaction solution, an aqueous hydrochloric acid solution (2 mL, 2 mol / L) was added, and the mixture was heated to reflux for 1 hour. After allowing to cool, an aqueous sodium hydroxide solution (1 mol / L) was added to make it alkaline, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine, dried over anhydrous sodium sulfate, and the solvent was concentrated. The residue was purified by silica gel column chromatography (silica gel 60, 0.040-0.063 mm; hexane: ethyl acetate = 3: 1), and N- {3- [4- (benzo [1,3]] as a colorless oil. Dioxole-5-ylmethyl) piperazin-1-yl] propyl} -2- (4-chlorophenylthio) aniline (190 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.71 (2H, qui, J = 6.7 Hz), 2.24-2.54 (10H, m), 3.17 (2H, q, J = 6.7 Hz), 3.39 (2H, s ), 5.19 (1H, brs), 6.63-6.70 (2H, m), 6.84 (1H, s), 6.96 (2H, d, J = 8.6 Hz), 7.16 (2H, d, J = 8.6 Hz), 7.31 (1H, t, J = 7.3 Hz), 7.43 (1H, dd, J = 7.3, 1.2 Hz).
ESIMS (M + H): 496
HRMS (ESI + ) for C 27 H 30 ClN 3 O 2 S [M + H] + : calcd, 496.18255; found, 496.17824.

(実施例13)
N−{3−[4−(ベンゾ[1,3]ジオキソール−5−イルメチル)ピペラジン−1−イル]プロピル}−N−[2−(4−クロロフェニルチオ)フェニル]アセトアミド

Figure 2008266236
N−{3−[4−(ベンゾ[1,3]ジオキソール−5−イルメチル)ピペラジン−1−イル]プロピル}−2−(4−クロロフェニルチオ)アニリン(実施例12の化合物:70.5mg)をジクロロメタン(2mL)に溶解させ0℃に冷却し、トリエチルアミン(0.06mL)、アセチルクロリド(0.020mL)を加え、4時間常温で撹拌した。反応液に水を加え、酢酸エチルで抽出し、有機層を飽和炭酸水素ナトリウム溶液、水、飽和食塩水で順次洗浄し、無水硫酸ナトリウムで乾燥して溶媒を濃縮した。残渣をシリカゲルカラムクロマトグラフィー(シリカゲル60,0.040〜0.063mm;ヘキサン:酢酸エチル=2:1)で精製し、淡黄色油状物としてN−{3−[4−(ベンゾ[1,3]ジオキソール−5−イルメチル)ピペラジン−1−イル]プロピル}−N−[2−(4−クロロフェニルチオ)フェニル]アセトアミド(25.0mg)得た。
1H-NMR (400 MHz, CDCl3) δ 1.65-1.83(5H, m), 2.25-2.60(10H, m), 3.22-3.32(1H, m), 3.40(2H, s), 4.05-4.16(1H, m), 5.95(2H, s), 6.68-6.76(2H, m), 6.83(1H, s), 6.92-7.00(1H, m), 7.10-7.23(3H, m), 7.30-7.40(4H, m).
ESIMS (M+H): 538
HRMS(FAB+) for C29H30ClN3O3S [M+H]+: calcd, 538.19311; found, 538.19232. (Example 13)
N- {3- [4- (Benzo [1,3] dioxol-5-ylmethyl) piperazin-1-yl] propyl} -N- [2- (4-chlorophenylthio) phenyl] acetamide
Figure 2008266236
N- {3- [4- (Benzo [1,3] dioxol-5-ylmethyl) piperazin-1-yl] propyl} -2- (4-chlorophenylthio) aniline (Compound of Example 12: 70.5 mg) Was dissolved in dichloromethane (2 mL), cooled to 0 ° C., triethylamine (0.06 mL) and acetyl chloride (0.020 mL) were added, and the mixture was stirred at room temperature for 4 hours. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with saturated sodium hydrogen carbonate solution, water and saturated brine, dried over anhydrous sodium sulfate, and the solvent was concentrated. The residue was purified by silica gel column chromatography (silica gel 60, 0.040-0.063 mm; hexane: ethyl acetate = 2: 1), and N- {3- [4- (benzo [1,3 ] Dioxol-5-ylmethyl) piperazin-1-yl] propyl} -N- [2- (4-chlorophenylthio) phenyl] acetamide (25.0 mg) was obtained.
1 H-NMR (400 MHz, CDCl 3 ) δ 1.65-1.83 (5H, m), 2.25-2.60 (10H, m), 3.22-3.32 (1H, m), 3.40 (2H, s), 4.05-4.16 ( 1H, m), 5.95 (2H, s), 6.68-6.76 (2H, m), 6.83 (1H, s), 6.92-7.00 (1H, m), 7.10-7.23 (3H, m), 7.30-7.40 ( 4H, m).
ESIMS (M + H): 538
HRMS (FAB + ) for C 29 H 30 ClN 3 O 3 S [M + H] + : calcd, 538.19311; found, 538.19232.

(実施例14)
2−[4−(1,3−ベンゾジオキソール−5−イルメチル)ピペラジン−1−イル]−N−[2−(ベンジルチオ)−5−(トリフルオロメチル)フェニル]アセトアミド

Figure 2008266236
2−(ベンジルチオ)−5−(トリフルオロメチル)アニリン(参考例26の化合物:90.0mg)、4−(1,3−ベンゾジオキソール−5−イルメチル)−1−ピペラジン酢酸 2塩酸塩(100mg)、をジクロロメタン(5mL)に溶かし、N−(3−ジメチルアミノプロピル)−N’−エチルカルボジイミド塩酸塩(WSC−HCl)(65.5mg,0.342mmol)を加え、常温で一日撹拌した。反応液を水にあけ、酢酸エチルで抽出し、有機層を水と飽和食塩水で洗浄した。無水硫酸ナトリウムで乾燥後、反応液を濃縮し、残渣をシリカゲルカラムクロマトグラフィー(シリカゲル60,0.040〜0.063mm;酢酸エチル)で精製し、無色アモルファスとして2−[4−(1,3−ベンゾジオキソール−5−イルメチル)ピペラジン−1−イル]−N−[2−(ベンジルチオ)−5−(トリフルオロメチル)フェニル]アセトアミド(59.7mg)を得た。
1H -NMR (400 MHz, CDCl3) δ 2.52 (4H, brs), 2.62 (4H, brs), 3.10 (2H, s), 3.40 (2H, s), 3.99 (2H, s), 5.94 (2H, s), 6.70-6.78 (2H, m), 6.84 (1H, s), 7.08-7.13 (2H, m), 7.00-7.28 (4H, m), 7.44 (1H, d, J = 7.9 Hz), 8.77 (1H, d, J = 1.8 Hz), 10.31 (1H, s). (Example 14)
2- [4- (1,3-Benzodioxol-5-ylmethyl) piperazin-1-yl] -N- [2- (benzylthio) -5- (trifluoromethyl) phenyl] acetamide
Figure 2008266236
2- (Benzylthio) -5- (trifluoromethyl) aniline (Compound of Reference Example 26: 90.0 mg), 4- (1,3-benzodioxol-5-ylmethyl) -1-piperazineacetic acid dihydrochloride (100 mg) was dissolved in dichloromethane (5 mL), N- (3-dimethylaminopropyl) -N′-ethylcarbodiimide hydrochloride (WSC-HCl) (65.5 mg, 0.342 mmol) was added, and one day at room temperature. Stir. The reaction mixture was poured into water and extracted with ethyl acetate, and the organic layer was washed with water and saturated brine. After drying over anhydrous sodium sulfate, the reaction mixture is concentrated, and the residue is purified by silica gel column chromatography (silica gel 60, 0.040 to 0.063 mm; ethyl acetate) to give 2- [4- (1,3 -Benzodioxol-5-ylmethyl) piperazin-1-yl] -N- [2- (benzylthio) -5- (trifluoromethyl) phenyl] acetamide (59.7 mg) was obtained.
1 H -NMR (400 MHz, CDCl 3 ) δ 2.52 (4H, brs), 2.62 (4H, brs), 3.10 (2H, s), 3.40 (2H, s), 3.99 (2H, s), 5.94 (2H , s), 6.70-6.78 (2H, m), 6.84 (1H, s), 7.08-7.13 (2H, m), 7.00-7.28 (4H, m), 7.44 (1H, d, J = 7.9 Hz), 8.77 (1H, d, J = 1.8 Hz), 10.31 (1H, s).

(試験例1)
本発明の化合物のIL−6阻害作用を以下の試験例で確認した。
IL−6によるSTAT3リン酸化作用試験
Simi T. Ahmed and Lionel B. Ivashkiv J. Immunol.,165,5227−5237(2000)を参考に、一部改変して行った。牛胎児血清を1%添加した培地(RPMI−1640に100U/mlペニシリンG、100μg/ml 硫酸ストレプトマイシン、10mM HEPES(pH7.4)、1mM ピルビン酸ナトリウム及び4.5mg/ml グルコースを添加)にて4×10cells/mlに調製したU266細胞(ATCCより入手)を12ウェルプレートに1ml/ウェルずつ添加し、37℃、5%CO下で22時間培養した。次に、被検化合物をDMSOで希釈し3μl/ウェルずつ添加し(最終濃度:1、3及び10μM)、30分間インキュベーションした。その後IL−6(Roche)をリン酸緩衝液(以下PBSと称する)で希釈し10μl/ウェルずつ添加し(最終濃度:1ng/ml)、15分間刺激した。その後PBS 3mlに細胞培養液を加え、4℃、1000rpm、5分間遠心し、上清を捨てた。沈殿した細胞にcell wash buffer(cell lysis kit,Bio−Rad)を1ml加え懸濁した後4℃、1000rpm、5分間遠心し、上清を捨てた。沈殿した細胞にcell lysis buffer(cell lysis kit,Bio−Rad)を40μl加え懸濁した後4℃、15000rpm、15分間遠心し上清を回収し、サンプルとした。各サンプルのタンパク質濃度をBCA(登録商標)Protein Assay Kit(PIERCE)を用いて測定し、cell lysis bufferを用いてタンパク質濃度を900μg/mlに調製した後、Bio−Plex(登録商標)System(Bio−Rad)を用いてSTAT3のリン酸化量を測定した。被検化合物のSTAT3リン酸化阻害率は以下の計算式を用いて算出した。
阻害率(%)=(IL−6刺激時のSTAT3リン酸化値−被検化合物存在下のIL−6刺激時のSTAT3リン酸化値)/(IL−6刺激時のSTAT3リン酸化値−IL−6刺激無しのSTAT3リン酸化値)×100
このようにして算出した被験化合物の各濃度(1、3及び10μg/ml)に於ける阻害率を表1に示す。
(Test Example 1)
The IL-6 inhibitory action of the compound of the present invention was confirmed in the following test examples.
STAT3 phosphorylation test by IL-6 Simi T. Ahmed and Lionel B.M. Ivashkiv J.M. Immunol. , 165, 5227-5237 (2000), with some modifications. In medium supplemented with 1% fetal calf serum (RPMI-1640 added with 100 U / ml penicillin G, 100 μg / ml streptomycin sulfate, 10 mM HEPES (pH 7.4), 1 mM sodium pyruvate and 4.5 mg / ml glucose) U266 cells (obtained from ATCC) prepared at 4 × 10 5 cells / ml were added to a 12-well plate at 1 ml / well and cultured at 37 ° C. under 5% CO 2 for 22 hours. Next, the test compound was diluted with DMSO and added at 3 μl / well (final concentrations: 1, 3 and 10 μM) and incubated for 30 minutes. Thereafter, IL-6 (Roche) was diluted with a phosphate buffer (hereinafter referred to as PBS), added at 10 μl / well (final concentration: 1 ng / ml), and stimulated for 15 minutes. Thereafter, the cell culture solution was added to 3 ml of PBS, centrifuged at 4 ° C. and 1000 rpm for 5 minutes, and the supernatant was discarded. 1 ml of cell wash buffer (cell lysis kit, Bio-Rad) was added to the precipitated cells, suspended, and centrifuged at 4 ° C., 1000 rpm for 5 minutes, and the supernatant was discarded. 40 μl of cell lysis buffer (cell lysis kit, Bio-Rad) was added to the precipitated cells, suspended, and then centrifuged at 4 ° C., 15000 rpm for 15 minutes to collect the supernatant and used as a sample. The protein concentration of each sample was measured using BCA (registered trademark) Protein Assay Kit (PIERCE), and the protein concentration was adjusted to 900 μg / ml using cell lysis buffer, and then Bio-Plex (registered trademark) System (Bio -Rad) was used to measure the amount of STAT3 phosphorylation. The STAT3 phosphorylation inhibition rate of the test compound was calculated using the following calculation formula.
Inhibition rate (%) = (STAT3 phosphorylation value upon IL-6 stimulation−STAT3 phosphorylation value upon IL-6 stimulation in the presence of test compound) / (STAT3 phosphorylation value upon IL-6 stimulation−IL−) 6 STAT3 phosphorylation without stimulation) x 100
Table 1 shows the inhibition rates at the respective concentrations (1, 3 and 10 μg / ml) of the test compound thus calculated.

Figure 2008266236
Figure 2008266236

表1から明らかなように、本発明の化合物及びその塩は優れたIL−6シグナル伝達阻害作用を示す。   As is clear from Table 1, the compounds of the present invention and salts thereof show an excellent IL-6 signal transduction inhibitory action.

本発明の化合物及びその塩は、優れたIL−6シグナル伝達阻害作用を有し、かつ毒性も低い。従って、本発明の化合物及びその塩は、IL−6の異常産生に伴う疾患(関節リウマチ、血管炎症候群、二次性アミロイドーシス、キャッスルマン病、間質性肺炎、増殖性糸球体腎炎、炎症性腸疾患(クローン病等)、腎移植に伴う拒絶、骨粗鬆症、エイズ、IL−6産生腫瘍(多発性骨髄腫、腎癌、子宮頸癌、肺癌及び心房粘液腫等)及び悪液質等)の治療、予防又は抑制に対して有効な、有用性の高い医薬である。   The compound of the present invention and a salt thereof have an excellent IL-6 signal transduction inhibitory action and low toxicity. Accordingly, the compounds of the present invention and salts thereof are diseases associated with abnormal production of IL-6 (rheumatoid arthritis, vasculitis syndrome, secondary amyloidosis, Castleman's disease, interstitial pneumonia, proliferative glomerulonephritis, inflammatory Intestinal diseases (Crohn's disease, etc.), rejection associated with kidney transplantation, osteoporosis, AIDS, IL-6-producing tumors (multiple myeloma, renal cancer, cervical cancer, lung cancer, atrial myxoma, etc.) and cachexia) It is a highly useful drug effective for treatment, prevention or suppression.

Claims (5)

下記一般式(1)で表される化合物又はその塩。
Figure 2008266236
(式中、
Xは、単結合又は−CH−を示し、
−Yは、式
Figure 2008266236
で表される基を示し、
Zは、単結合、−CH−又は−C(O)−を示し、
1a、R1b、R1c、R2a、R2b及びR2cは、同一又は異なって、水素原子、ハロゲン原子又はハロゲン原子で置換されていてもよいC〜Cアルキル基を示し、ただし、R1a及びR2aは同時に水素原子を示すことはなく、
及びRは、同一又は異なって、水素原子又はC〜Cアルキル基を示す。)
A compound represented by the following general formula (1) or a salt thereof.
Figure 2008266236
(Where
X represents a single bond or —CH 2 —;
Y 1 -Y 2 is a formula
Figure 2008266236
Represents a group represented by
Z represents a single bond, —CH 2 — or —C (O) —,
R 1a , R 1b , R 1c , R 2a , R 2b and R 2c are the same or different and each represents a hydrogen atom, a halogen atom or a C 1 to C 6 alkyl group which may be substituted with a halogen atom, , R 1a and R 2a do not represent a hydrogen atom at the same time,
R 3 and R 4 are the same or different and each represents a hydrogen atom or a C 1 -C 6 alkyl group. )
Zが−CH−である、請求項1記載の化合物又はその塩。 Z is -CH 2 - is a compound or its salt according to claim 1. Zが−CH−であり、R1aがハロゲン原子であり、R2aが水素原子である、請求項1記載の化合物又はその塩。 The compound or a salt thereof according to claim 1, wherein Z is —CH 2 —, R 1a is a halogen atom, and R 2a is a hydrogen atom. Zが−CH−であり、Xが単結合であり、R1aがハロゲン原子であり、R2aが水素原子であり、
−Yが式
Figure 2008266236
で表される基である、請求項1記載の化合物又はその塩。
Z is —CH 2 —, X is a single bond, R 1a is a halogen atom, R 2a is a hydrogen atom,
Y 1 -Y 2 is a formula
Figure 2008266236
The compound or its salt of Claim 1 which is group represented by these.
Zが−CH−であり、Xが単結合であり、R1aがハロゲン原子であり、R2aが水素原子であり、
−Yが式
Figure 2008266236
で表される基である、請求項1記載の化合物又はその塩。
Z is —CH 2 —, X is a single bond, R 1a is a halogen atom, R 2a is a hydrogen atom,
Y 1 -Y 2 is a formula
Figure 2008266236
The compound or its salt of Claim 1 which is group represented by these.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9045445B2 (en) 2010-06-04 2015-06-02 Albany Molecular Research, Inc. Glycine transporter-1 inhibitors, methods of making them, and uses thereof
CN105418506A (en) * 2014-09-19 2016-03-23 上海医药工业研究院 Acetobenzylamide piperazine derivative and application thereof as cranial nerve protective agent

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9045445B2 (en) 2010-06-04 2015-06-02 Albany Molecular Research, Inc. Glycine transporter-1 inhibitors, methods of making them, and uses thereof
CN105418506A (en) * 2014-09-19 2016-03-23 上海医药工业研究院 Acetobenzylamide piperazine derivative and application thereof as cranial nerve protective agent

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