JP2009242240A - Boron-containing quinazoline derivative - Google Patents

Boron-containing quinazoline derivative Download PDF

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JP2009242240A
JP2009242240A JP2006213764A JP2006213764A JP2009242240A JP 2009242240 A JP2009242240 A JP 2009242240A JP 2006213764 A JP2006213764 A JP 2006213764A JP 2006213764 A JP2006213764 A JP 2006213764A JP 2009242240 A JP2009242240 A JP 2009242240A
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hydrogen atom
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boron
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Hiroyuki Nakamura
浩之 中村
Ryoji Horikoshi
良爾 堀越
Hyun Seung Ban
鉉承 潘
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Mebiopharm Co Ltd
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    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00Compounds containing elements of Groups 3 or 13 of the Periodic System
    • C07F5/02Boron compounds
    • C07F5/025Boronic and borinic acid compounds
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00Antineoplastic agents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00Antineoplastic agents
    • A61P35/02Antineoplastic agents specific for leukemia
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compound having the inhibitory effect of thyrosine kinase activity such as EGFR, VEGFR2, etc., and useful as an antitumor agent. <P>SOLUTION: This boron-containing quinazoline derivative expressed by formula (I) [wherein, R<SP>1</SP>, R<SP>2</SP>are each H, an alkoxy, -O-(CH<SB>2</SB>)<SB>n</SB>-OCH<SB>3</SB>, -X-B-(OR<SP>6</SP>)(OR<SP>7</SP>) or the like; R<SP>3</SP>, R<SP>4</SP>are each H, an alkyl, a haloalkyl, an alkoxy or a halogen atom; R<SP>5</SP>is H or -B(OR<SP>8</SP>)(OR<SP>9</SP>); D is -O- or -NH-; provided that when the R<SP>5</SP>is H, one of the R<SP>1</SP>, R<SP>2</SP>is -B(OR<SP>6</SP>)(OR<SP>7</SP>), and when the R<SP>5</SP>is -B(OR<SP>8</SP>)(OR<SP>9</SP>), the R<SP>5</SP>bonds at a meta position or a para position relative to the linking group D] or its pharmaceutically acceptable salt is provided. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、新規なキナゾリン誘導体に関し、詳細には抗腫瘍剤として有用な含ホウ素キナゾリン誘導体に関する。   The present invention relates to a novel quinazoline derivative, and particularly relates to a boron-containing quinazoline derivative useful as an antitumor agent.

受容体型チロシンキナーゼファミリーの一つである上皮成長因子受容体(EGFR)の発現レベルおよびその発現頻度は、腫瘍細胞では正常細胞よりも高く、頭頸部癌、乳癌、大腸癌、前立腺癌、腎癌、子宮癌、卵巣癌、および膀胱癌など多くの固形癌で過剰に発現していること、並びにこれらがしばしば癌の予後と密接に関連することが知られている(非特許文献1)。このEGFRへのリガンドの結合により活性化される増殖シグナルの伝達は、腫瘍の不死化、血管新生、浸潤および転移とも深く関わることが知られており、EGFRを含むシグナル伝達に関わる分子は、癌治療における新しい標的分子の一つとして考えられている。例えば4−アニリノキナゾリンを母核とする化合物は、EGFR阻害作用を持ち、腫瘍増殖抑制作用を有することが知られている(非特許文献2等)。   The expression level and expression frequency of epidermal growth factor receptor (EGFR), which is one of the receptor tyrosine kinase families, is higher in tumor cells than in normal cells. Head and neck cancer, breast cancer, colon cancer, prostate cancer, renal cancer It is known that it is overexpressed in many solid cancers such as uterine cancer, ovarian cancer, and bladder cancer, and that these are often closely related to cancer prognosis (Non-patent Document 1). Proliferation signal transduction activated by ligand binding to EGFR is known to be deeply involved in tumor immortalization, angiogenesis, invasion and metastasis, and molecules involved in signal transduction including EGFR It is considered as one of the new target molecules in therapy. For example, a compound having 4-anilinoquinazoline as a mother nucleus is known to have an EGFR inhibitory action and a tumor growth inhibitory action (Non-patent Document 2 and the like).

一方、癌が増大するためには、酸素や栄養源を運ぶ癌新生血管が必要である。まず、癌細胞から血管内皮細胞成長因子(VEGF)や塩基性線維芽細胞増殖因子(bFGF)などの成長ホルモンが産生され、これに刺激を受けた血管内皮はマトリクスメタロプロテアーゼ(MMPs)やウロキナーゼ型プラスミノーゲン活性化因子(uPA)を産生し、血管を裏打ちしている基底膜を分解する。間質へ遊走した血管内皮細胞は、管腔を形成し、新生血管を構築する。この新生血管が癌細胞に酸素や栄養源を補給し、癌の浸潤を促す。VEGFは強力な血管内皮遊走因子のみならず、内皮細胞の増殖、管腔の形成にも関っていることが知られており(非特許文献3)、VEGF受容体(VEGFR)を標的とした薬剤の探索も進められている(非特許文献4〜5等)。   On the other hand, in order for cancer to increase, cancer neovascularization that carries oxygen and nutrients is necessary. First, growth hormones such as vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) are produced from cancer cells, and the stimulated vascular endothelium is matrix metalloproteinases (MMPs) or urokinase type. It produces plasminogen activator (uPA) and degrades the basement membrane lining the blood vessels. Vascular endothelial cells that have migrated to the stroma form lumens and build new blood vessels. These new blood vessels replenish cancer cells with oxygen and nutrients, and promote cancer invasion. VEGF is known not only to be a powerful vascular endothelial migration factor, but also to be involved in endothelial cell proliferation and lumen formation (Non-patent Document 3), and targets VEGF receptor (VEGFR). Searches for drugs are also being promoted (Non-Patent Documents 4 to 5 etc.).

これらの受容体を標的とした薬剤は盛んに探索が進められており、高い選択性を有し、かつ優れた効果を有する薬剤の開発が待たれている。
Invest. New Drugs, 17, 259-269, 1999 Bull Cancer, 87(12), 873-876, 2000 J. Cell Biol., 129, 895-898, 1995 J. Med. Chem., 45, 1300-1312, 2002 J. Med. Chem., 48, 1359-1366, 2005
Searches for drugs targeting these receptors have been actively conducted, and development of drugs having high selectivity and excellent effects is awaited.
Invest. New Drugs, 17, 259-269, 1999 Bull Cancer, 87 (12), 873-876, 2000 J. Cell Biol., 129, 895-898, 1995 J. Med. Chem., 45, 1300-1312, 2002 J. Med. Chem., 48, 1359-1366, 2005

本発明の目的は、高い選択性を有するチロシンキナーゼ阻害能を有する、抗腫瘍剤を提供することを目的とする。   An object of the present invention is to provide an antitumor agent having a high selectivity and a tyrosine kinase inhibitory ability.

そこで本発明者は、種々の化合物を合成し、チロシンキナーゼ活性阻害作用を指標として探索してきた結果、下記式(1)で表される含ホウ素キナゾリン誘導体が優れたチロシンキナーゼ活性阻害作用を有し、抗腫瘍剤として有用であることを見出し、本発明を完成した。   Thus, as a result of synthesizing various compounds and searching using the tyrosine kinase activity inhibitory action as an index, the present inventors have found that the boron-containing quinazoline derivative represented by the following formula (1) has an excellent tyrosine kinase activity inhibitory action. The present invention was completed by finding that it is useful as an antitumor agent.

すなわち、本発明は、下記式(1)   That is, the present invention provides the following formula (1):

Figure 2009242240
Figure 2009242240

[式中、R1およびR2はそれぞれ独立して水素原子、アルコキシ基、−O−(CH2n−OCH3(nは1〜10の整数を示す)、 [Wherein, R 1 and R 2 are each independently a hydrogen atom, an alkoxy group, —O— (CH 2 ) n —OCH 3 (n represents an integer of 1 to 10),

Figure 2009242240
Figure 2009242240

(mは1〜10の整数を示す)
(M represents an integer of 1 to 10)
,

Figure 2009242240
Figure 2009242240

(pは1〜10の整数を示す)
または−X−B−(OR6)(OR7)(式中、Xは単結合、−OCH2−、−OCH2CH=CH−または
(P represents an integer of 1 to 10)
Or -X-B- (OR 6) ( OR 7) ( wherein, X represents a single bond, -OCH 2 -, - OCH 2 CH = CH- or

Figure 2009242240
Figure 2009242240

を示し、R6およびR7は水素原子を示すか、またはOR6とOR7とが互いに連結して隣接するホウ素原子とともに置換基を有していてもよいホウ素含有複素環基を形成する)を示し;
3およびR4はそれぞれ独立して水素原子、アルキル基、ハロアルキル基、アルコキシ基またはハロゲン原子を示し;
5は水素原子または−B(OR8)(OR9)(式中、R8およびR9はそれぞれ独立して水素原子またはアルキル基を示すか、またはOR8とOR9とが互いに連結して隣接するホウ素原子とともに置換基を有していてもよいホウ素含有複素環基を形成する。)を示し;
Dは−O−または−NH−を示す。
ただし、R5が水素原子を示すとき、R1またはR2はアルコキシ基、−O−(CH2n−OCH3(nは前記定義に同じ)、
And R 6 and R 7 represent a hydrogen atom, or OR 6 and OR 7 are linked to each other to form a boron-containing heterocyclic group which may have a substituent together with the adjacent boron atom) Indicates;
R 3 and R 4 each independently represent a hydrogen atom, an alkyl group, a haloalkyl group, an alkoxy group or a halogen atom;
R 5 is a hydrogen atom or —B (OR 8 ) (OR 9 ) (wherein R 8 and R 9 each independently represent a hydrogen atom or an alkyl group, or OR 8 and OR 9 are linked to each other). Forming a boron-containing heterocyclic group which may have a substituent together with an adjacent boron atom);
D represents —O— or —NH—.
However, when R 5 represents a hydrogen atom, R 1 or R 2 is an alkoxy group, -O- (CH 2) n -OCH 3 (n is as defined above),

Figure 2009242240
Figure 2009242240

(mは前記定義に同じ)
(M is as defined above)
,

Figure 2009242240
Figure 2009242240

(pは前記定義に同じ)
または−B−(OR6)(OR7)(式中、R6およびR7は前記定義に同じ)を示す。またR5が−B(OH)2を示し、かつDが−NH−を示すとき、R1およびR2はともにメトキシ基を示さないものとする。
なお、R5が水素原子を示すとき、R1およびR2の少なくともいずれか一方は−B(OR6)(OR7)を示すものとし、またR5が−B(OR8)(OR9)を示すとき、連結基Dに対してメタ位またはパラ位に結合するものとする。]
で表される含ホウ素キナゾリン誘導体または薬学的に許容されるその塩を提供するものである。
(P is as defined above)
Or -B- (OR 6 ) (OR 7 ) (wherein R 6 and R 7 are the same as defined above). When R 5 represents —B (OH) 2 and D represents —NH—, neither R 1 nor R 2 represents a methoxy group.
When R 5 represents a hydrogen atom, at least one of R 1 and R 2 represents —B (OR 6 ) (OR 7 ), and R 5 represents —B (OR 8 ) (OR 9 ). ), It shall be bonded to the linking group D at the meta position or the para position. ]
Or a pharmaceutically acceptable salt thereof.

また、本発明は、下記式(1)、   Further, the present invention provides the following formula (1),

Figure 2009242240
Figure 2009242240

[式中、R1およびR2はそれぞれ独立して水素原子、アルコキシ基、−O−(CH2n−OCH3(nは1〜10の整数を示す)、 [Wherein, R 1 and R 2 are each independently a hydrogen atom, an alkoxy group, —O— (CH 2 ) n —OCH 3 (n represents an integer of 1 to 10),

Figure 2009242240
Figure 2009242240

(mは1〜10の整数を示す)
(M represents an integer of 1 to 10)
,

Figure 2009242240
Figure 2009242240

(pは1〜10の整数を示す)
または−X−B−(OR6)(OR7)(式中、Xは単結合、−OCH2−、−OCH2CH=CH−または
(P represents an integer of 1 to 10)
Or -X-B- (OR 6) ( OR 7) ( wherein, X represents a single bond, -OCH 2 -, - OCH 2 CH = CH- or

Figure 2009242240
Figure 2009242240

を示し、R6およびR7は水素原子を示すか、またはOR6とOR7とが互いに連結して隣接するホウ素原子とともに置換基を有していてもよいホウ素含有複素環基を形成する)を示し、
3およびR4はそれぞれ独立して水素原子、アルキル基、ハロアルキル基、アルコキシ基またはハロゲン原子を示し、
5は水素原子または−B(OR8)(OR9)(式中、R8およびR9はそれぞれ独立して水素原子またはアルキル基を示すか、またはOR8とOR9とが互いに連結して隣接するホウ素原子とともに置換基を有していてもよいホウ素含有複素環基を形成する。)を示し、
Dは−O−または−NH−を示す。
ただし、R5が水素原子を示すとき、R1またはR2は−X’−B−(OR6)(OR7)(式中、X’は−OCH2−、−OCH2CH=CH−または
And R 6 and R 7 represent a hydrogen atom, or OR 6 and OR 7 are linked to each other to form a boron-containing heterocyclic group which may have a substituent together with the adjacent boron atom) Indicate
R 3 and R 4 each independently represent a hydrogen atom, an alkyl group, a haloalkyl group, an alkoxy group or a halogen atom,
R 5 is a hydrogen atom or —B (OR 8 ) (OR 9 ) (wherein R 8 and R 9 each independently represent a hydrogen atom or an alkyl group, or OR 8 and OR 9 are linked to each other). A boron-containing heterocyclic group which may have a substituent together with an adjacent boron atom))
D represents —O— or —NH—.
However, when R 5 represents a hydrogen atom, R 1 or R 2 -X'-B- (OR 6) ( OR 7) ( wherein, X 'is -OCH 2 -, - OCH 2 CH = CH- Or

Figure 2009242240
Figure 2009242240

を示し、R6およびR7は前記定義に同じ)を示さないものとする。
なお、R5が水素原子を示すとき、R1およびR2の少なくともいずれか一方は−B(OR6)(OR7)を示すものとし、またR5が−B(OR8)(OR9)を示すとき、連結基Dに対してメタ位またはパラ位に結合するものとする。]
で表される含ホウ素キナゾリン誘導体または薬学的に許容されるその塩、および薬学的に許容される担体を含有してなる医薬組成物を提供するものである。
And R 6 and R 7 are the same as defined above.
When R 5 represents a hydrogen atom, at least one of R 1 and R 2 represents —B (OR 6 ) (OR 7 ), and R 5 represents —B (OR 8 ) (OR 9 ). ), It shall be bonded to the linking group D at the meta position or the para position. ]
And a pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising a pharmaceutically acceptable carrier.

さらに本発明は、下記式(1)、   Furthermore, the present invention provides the following formula (1),

Figure 2009242240
Figure 2009242240

[式中、R1およびR2はそれぞれ独立して水素原子、アルコキシ基、−O−(CH2n−OCH3(nは1〜10の整数を示す)、 [Wherein, R 1 and R 2 are each independently a hydrogen atom, an alkoxy group, —O— (CH 2 ) n —OCH 3 (n represents an integer of 1 to 10),

Figure 2009242240
Figure 2009242240

(mは1〜10の整数を示す)
(M represents an integer of 1 to 10)
,

Figure 2009242240
Figure 2009242240

(pは1〜10の整数を示す)
または−X−B−(OR6)(OR7)(式中、Xは単結合、−OCH2−、−OCH2CH=CH−または
(P represents an integer of 1 to 10)
Or -X-B- (OR 6) ( OR 7) ( wherein, X represents a single bond, -OCH 2 -, - OCH 2 CH = CH- or

Figure 2009242240
Figure 2009242240

を示し、R6およびR7は水素原子を示すか、またはOR6とOR7とが互いに連結して隣接するホウ素原子とともに置換基を有していてもよいホウ素含有複素環基を形成する)を示し、
3およびR4はそれぞれ独立して水素原子、アルキル基、ハロアルキル基、アルコキシ基またはハロゲン原子を示し、
5は水素原子または−B(OR8)(OR9)(式中、R8およびR9はそれぞれ独立して水素原子またはアルキル基を示すか、またはOR8とOR9とが互いに連結して隣接するホウ素原子とともに置換基を有していてもよいホウ素含有複素環基を形成する。)を示し、
Dは−O−または−NH−を示す。
ただし、R5が水素原子を示すとき、R1またはR2は−X’−B−(OR6)(OR7)(式中、X’は−OCH2−、−OCH2CH=CH−または
And R 6 and R 7 represent a hydrogen atom, or OR 6 and OR 7 are linked to each other to form a boron-containing heterocyclic group which may have a substituent together with the adjacent boron atom) Indicate
R 3 and R 4 each independently represent a hydrogen atom, an alkyl group, a haloalkyl group, an alkoxy group or a halogen atom,
R 5 is a hydrogen atom or —B (OR 8 ) (OR 9 ) (wherein R 8 and R 9 each independently represent a hydrogen atom or an alkyl group, or OR 8 and OR 9 are linked to each other). A boron-containing heterocyclic group which may have a substituent together with an adjacent boron atom))
D represents —O— or —NH—.
However, when R 5 represents a hydrogen atom, R 1 or R 2 -X'-B- (OR 6) ( OR 7) ( wherein, X 'is -OCH 2 -, - OCH 2 CH = CH- Or

Figure 2009242240
Figure 2009242240

を示し、R6およびR7は前記定義に同じ)を示さないものとする。
なお、R5が水素原子を示すとき、R1およびR2の少なくともいずれか一方は−B(OR6)(OR7)を示すものとし、またR5が−B(OR8)(OR9)を示すとき、連結基Dに対してメタ位またはパラ位に結合するものとする。]
で表される含ホウ素キナゾリン誘導体または薬学的に許容されるその塩を有効成分とする抗腫瘍剤を提供するものである。
And R 6 and R 7 are the same as defined above.
When R 5 represents a hydrogen atom, at least one of R 1 and R 2 represents —B (OR 6 ) (OR 7 ), and R 5 represents —B (OR 8 ) (OR 9 ). ), It shall be bonded to the linking group D at the meta position or the para position. ]
The antitumor agent which uses the boron-containing quinazoline derivative represented by these, or its pharmaceutically acceptable salt as an active ingredient is provided.

本発明の含ホウ素キナゾリン誘導体または薬学的に許容されるその塩は、優れたチロシンキナーゼ活性阻害作用を有し、各種の癌に対する抗腫瘍剤として有用である。   The boron-containing quinazoline derivative of the present invention or a pharmaceutically acceptable salt thereof has an excellent tyrosine kinase activity inhibitory action and is useful as an antitumor agent for various cancers.

本発明に係る含ホウ素キナゾリン誘導体は、前記式(1)で表される。
1、R2、R3およびR4で示されるアルコキシ基としては、メトキシ基、エトキシ基、n−プロポキシ基、i−プロポキシ基、n−ブトキシ基、i−ブトキシ基、t−ブトキシ基、n−ペンチルオキシ基、n−ヘキシルオキシ基、n−ヘプチルオキシ基等の炭素数1〜10のアルコキシ基が挙げられ、より好ましくは炭素数1〜5のアルコキシ基である。R3およびR4で示されるハロゲン原子としてはフッ素原子、塩素原子、臭素原子等が挙げられる。R3、R4、R8およびR9で示されるアルキル基としては、メチル基、エチル基、n−プロピル基、i−プロピル基、n−ブチル基、i−ブチル基、t−ブチル基、n−ペンチル基、n−ヘキシル基、n−ヘプチル基等の炭素数1〜10のアルキル基が挙げられ、より好ましくは炭素数1〜5のアルキル基である。R3またはR4で示されるハロアルキル基としては、クロロメチル基、ジクロロメチル基、トリクロロメチル基、トリフルオロメチル基、1,1,1−トルフルオロエチル基等の炭素数1〜5のハロアルキル基が挙げられ、より好ましくはフッ素原子を有するハロアルキル基である。
The boron-containing quinazoline derivative according to the present invention is represented by the formula (1).
Examples of the alkoxy group represented by R 1 , R 2 , R 3 and R 4 include a methoxy group, an ethoxy group, an n-propoxy group, an i-propoxy group, an n-butoxy group, an i-butoxy group, a t-butoxy group, C1-C10 alkoxy groups, such as n-pentyloxy group, n-hexyloxy group, n-heptyloxy group, etc. are mentioned, More preferably, it is a C1-C5 alkoxy group. Examples of the halogen atom represented by R 3 and R 4 include a fluorine atom, a chlorine atom, and a bromine atom. Examples of the alkyl group represented by R 3 , R 4 , R 8 and R 9 include methyl group, ethyl group, n-propyl group, i-propyl group, n-butyl group, i-butyl group, t-butyl group, C1-C10 alkyl groups, such as n-pentyl group, n-hexyl group, n-heptyl group, are mentioned, More preferably, it is a C1-C5 alkyl group. As the haloalkyl group represented by R 3 or R 4 , a haloalkyl group having 1 to 5 carbon atoms such as a chloromethyl group, a dichloromethyl group, a trichloromethyl group, a trifluoromethyl group, and a 1,1,1-trifluoroethyl group And more preferably a haloalkyl group having a fluorine atom.

またOR6とOR7またはOR8とOR9とが互いに連結し、隣接するホウ素原子とともに形成し得る複素環基としては、以下のようなものが挙げられる。 Examples of the heterocyclic group that OR 6 and OR 7 or OR 8 and OR 9 are connected to each other and can be formed with an adjacent boron atom include the following.

Figure 2009242240
Figure 2009242240

これらの環上には、1〜4個の炭素数1〜5のアルキル基、ヒドロキシル基、ヒドロキシ−C1−C5アルキル基等の置換基を有していてもよい。ここで、好ましい置換基としては、1〜4個のメチル、エチル、n−プロピル、i−プロピル、ヒドロキシル、ヒドロキシメチル、ヒドロキシエチル基等が挙げられる。 On these rings, 1 to 4 alkyl groups of 1 to 5 carbon atoms, a hydroxyl group, which may have a substituent such as hydroxy -C 1 -C 5 alkyl group. Here, preferable substituents include 1 to 4 methyl, ethyl, n-propyl, i-propyl, hydroxyl, hydroxymethyl, hydroxyethyl groups and the like.

nは1〜10の整数を示すが、さらに1〜6、特に1〜4が好ましい。mは1〜10の整数を示すが、1〜6、特に1〜4が好ましい。pは1〜10の整数を示すが、さらに1〜6、特に1〜4が好ましい。また、DはNHが特に好ましい。またXは単結合が特に好ましい。   n represents an integer of 1 to 10, more preferably 1 to 6, and particularly preferably 1 to 4. m represents an integer of 1 to 10, and 1 to 6, particularly 1 to 4 is preferable. p represents an integer of 1 to 10, more preferably 1 to 6, and particularly preferably 1 to 4. D is particularly preferably NH. X is particularly preferably a single bond.

前記式(1)中、R1およびR2が水素原子、アルコキシ基、−O−(CH2n−OCH3(nは前記定義に同じ)、 In the formula (1), R 1 and R 2 are a hydrogen atom, an alkoxy group, —O— (CH 2 ) n —OCH 3 (n is as defined above),

Figure 2009242240
Figure 2009242240

(mは前記定義に同じ)
または
(M is as defined above)
Or

Figure 2009242240
Figure 2009242240

(pは前記定義に同じ)
であり、R5が−B(OR8)(OR9)である化合物が好ましい。
このとき、R5である−B(OR8)(OR9)は連結基Dに対してメタ位またはパラ位に結合するが、特にパラ位に結合しているのが好ましい。また、R5が−B(OR8)(OR9)の場合には、R1およびR2は、ともに炭素数1〜5のアルコキシ基または−O−(CH2n'−O−CH3(n’は1〜4の整数を示す)が好ましい。さらに、このとき、R5は−B(OH)2であるのが特に好ましい。
(P is as defined above)
And a compound in which R 5 is —B (OR 8 ) (OR 9 ) is preferred.
At this time, —B (OR 8 ) (OR 9 ), which is R 5 , is bonded to the meta position or the para position with respect to the linking group D, and particularly preferably bonded to the para position. When R 5 is —B (OR 8 ) (OR 9 ), R 1 and R 2 are both an alkoxy group having 1 to 5 carbon atoms or —O— (CH 2 ) n ′ —O—CH. 3 (n ′ represents an integer of 1 to 4) is preferable. Further, at this time, R 5 is particularly preferably —B (OH) 2 .

前記式(1)中、R1およびR2の少なくともいずれか一方が−B−(OR6)(OR7)(式中、R6およびR7は前記定義に同じ)であり、R3およびR4の少なくともいずれか一方がハロゲン原子である化合物が好ましい。 In the formula (1), at least one of R 1 and R 2 is —B— (OR 6 ) (OR 7 ) (wherein R 6 and R 7 are the same as defined above), and R 3 and A compound in which at least one of R 4 is a halogen atom is preferable.

また、R1が−B−(OR6)(OR7)(式中、R6およびR7は前記定義に同じ)であり、R2がアルコキシ基、−O−(CH2n−OCH3(nは前記定義に同じ)、 R 1 is —B— (OR 6 ) (OR 7 ) (wherein R 6 and R 7 are the same as defined above), R 2 is an alkoxy group, —O— (CH 2 ) n —OCH 3 (n is as defined above),

Figure 2009242240
Figure 2009242240

(mは前記定義に同じ)
または
(M is as defined above)
Or

Figure 2009242240
Figure 2009242240

(pは前記定義に同じ)
である化合物もまた好ましい。
(P is as defined above)
Also preferred are compounds that are

前記式(1)中、4−(6,7−ビス(2−メトキシエトキシ)キナゾリン−4−イル−アミノ)フェニルホウ酸、およびこれらの薬学的に許容される塩が特に好ましい。   In the formula (1), 4- (6,7-bis (2-methoxyethoxy) quinazolin-4-yl-amino) phenyl boric acid and pharmaceutically acceptable salts thereof are particularly preferable.

式(1)の化合物の薬学的に許容される塩としては特に制限はされないが、例えば塩酸塩、臭化水素酸塩、硫酸塩、リン酸塩、酢酸塩、酒石酸塩、グルコン酸塩、乳酸塩、リンゴ酸塩、シュウ酸塩、マレイン酸塩、フマル酸塩、クエン酸塩、安息香酸塩、ベンゼンスルホン酸塩、メタンスルホン酸塩等の酸付加塩;ナトリウム塩、カリウム塩、マグネシウム塩、カルシウム塩、アルミニウム塩、亜鉛塩等の金属塩;アンモニウム塩、テトラメチルアンモニウム塩等のアンモニウム塩;モルホリン塩、ピペリジン塩等の有機アミン付加塩;リジン塩、グリシン塩、フェニルアラニン塩、アスパラギン酸塩、グルタミン酸塩等のアミノ酸塩を挙げることができる。   Although it does not restrict | limit especially as a pharmacologically acceptable salt of the compound of Formula (1), For example, hydrochloride, hydrobromide, sulfate, phosphate, acetate, tartrate, gluconate, lactic acid Acid addition salts such as salt, malate, oxalate, maleate, fumarate, citrate, benzoate, benzenesulfonate, methanesulfonate; sodium salt, potassium salt, magnesium salt, Metal salts such as calcium salts, aluminum salts and zinc salts; ammonium salts such as ammonium salts and tetramethylammonium salts; organic amine addition salts such as morpholine salts and piperidine salts; lysine salts, glycine salts, phenylalanine salts, aspartates, Examples thereof include amino acid salts such as glutamate.

本発明の含ホウ素キナゾリン誘導体は、例えば以下のような方法で製造することができる。   The boron-containing quinazoline derivative of the present invention can be produced, for example, by the following method.

Figure 2009242240
Figure 2009242240

上記反応式中、R3〜R7は前記定義に同じである。
式(2)で表される4−クロロ−6−ヨードキナゾリンを、イソプロピルアルコール、エタノール、ブチルアルコール、ジオキサン、テトラヒドロフラン、ジメチルホルムアミド等の溶媒中、−10〜50℃程度の温度で、5分間〜72時間程度、式(3)で表されるアニリン誘導体と反応させて、式(4)で表されるアニリノキナゾリン誘導体を得る。
In the above reaction formula, R 3 to R 7 are the same as defined above.
4-chloro-6-iodoquinazoline represented by the formula (2) is dissolved in a solvent such as isopropyl alcohol, ethanol, butyl alcohol, dioxane, tetrahydrofuran, dimethylformamide at a temperature of about −10 to 50 ° C. for 5 minutes to By reacting with the aniline derivative represented by the formula (3) for about 72 hours, the anilinoquinazoline derivative represented by the formula (4) is obtained.

次にこれを不活性ガスの存在下、ジオキサン、テトラヒドロフラン、ジメチルホルムアミド、アセトニトリル等の溶媒中、パラジウム錯体単独、またはテトラキストリフェニルホスフィンパラジウム、ジベンジルデンアセトンパラジウム等の0価パラジウム錯体もしくは塩化パラジウム、酢酸パラジウム等の2価のパラジウム塩とホスフィン配位子(トリフェニルホスフィン、トリシクロヘキシルホスフィン、トリブチルホスフィン、ジフェニルホスフィノフェロセン、ジフェニルホスフィノエタン、ジフェニルホスフィノプロパン、ジフェニルホスフィノブタン等)との組合せ等の触媒とともに、0〜150℃程度の温度で、5分間〜72時間程度、式(5)で表されるジボロンエステルと反応させて、式(6)で表されるアニリノキナゾリンのホウ酸エステル化合物を得る。   Then, in the presence of an inert gas, in a solvent such as dioxane, tetrahydrofuran, dimethylformamide, acetonitrile, palladium complex alone, or a zerovalent palladium complex such as tetrakistriphenylphosphine palladium, dibenzyldenacetone palladium or palladium chloride, Combinations of divalent palladium salts such as palladium acetate and phosphine ligands (triphenylphosphine, tricyclohexylphosphine, tributylphosphine, diphenylphosphinoferrocene, diphenylphosphinoethane, diphenylphosphinopropane, diphenylphosphinobutane, etc.) And an anilinoquinazo compound represented by the formula (6) by reacting with the diboron ester represented by the formula (5) at a temperature of about 0 to 150 ° C. for about 5 minutes to 72 hours. Get down boric acid ester compound.

次いでこれにメタノール、エタノール、プロパノール、イソプロピルアルコール、ブチルアルコール、ジオキサン、テトラヒドロフラン、ジメチルホルムアミド等の溶媒の存在下、フッ化水素カリウム水溶液または酢酸、塩酸、硫酸、硝酸等の酸を加え、−10〜50℃程度の温度で、5分間〜72時間程度反応させる。これにフェニルホウ酸、イソブチルホウ酸、アリルホウ酸等のホウ酸化合物を加え、−10〜50℃程度の温度で、5分間〜72時間程度反応させることにより、式(7)で表される化合物を得ることができる。このとき、必要に応じてペンタン、ヘキサン、ヘプタン、オクタン等のアルカン系溶媒を用いて、エステル交換反応により生成するホウ酸エステル化合物を抽出、取り除くことにより、より効果的に式(7)で表される化合物を得ることができる。   Next, an aqueous solution of potassium hydrogen fluoride or an acid such as acetic acid, hydrochloric acid, sulfuric acid, nitric acid is added in the presence of a solvent such as methanol, ethanol, propanol, isopropyl alcohol, butyl alcohol, dioxane, tetrahydrofuran, dimethylformamide, and the like. The reaction is carried out at a temperature of about 50 ° C. for about 5 minutes to 72 hours. A boric acid compound such as phenylboric acid, isobutyl boric acid, and allyl boric acid is added to this and reacted at a temperature of about −10 to 50 ° C. for about 5 minutes to 72 hours, whereby the compound represented by formula (7) is obtained. Obtainable. At this time, if necessary, by using an alkane solvent such as pentane, hexane, heptane, and octane, the borate ester compound produced by the transesterification reaction is extracted and removed, thereby more effectively expressing the formula (7). Can be obtained.

なお式(2)で表される4−クロロ−6−ヨードキナゾリンは、Bioorg. Med. Chem. Lett., 13, 637, 2003に記載の方法にて合成することができる。   4-chloro-6-iodoquinazoline represented by the formula (2) can be synthesized by the method described in Bioorg. Med. Chem. Lett., 13, 637, 2003.

Figure 2009242240
Figure 2009242240

上記反応式中、R2〜R7は前記定義に同じである。
式(8)で表される6−アセトキシ4−クロロキナゾリン誘導体を、イソプロピルアルコール、エタノール、ブチルアルコール、ジオキサン、テトラヒドロフラン、ジメチルホルムアミド等の溶媒中、−10〜50℃程度の温度で、5分間〜72時間程度、式(3)で表されるアニリン誘導体と反応させて、式(9)で表されるアニリノキナゾリン誘導体を得る。
In the above reaction formula, R 2 to R 7 are the same as defined above.
The 6-acetoxy 4-chloroquinazoline derivative represented by the formula (8) is dissolved in a solvent such as isopropyl alcohol, ethanol, butyl alcohol, dioxane, tetrahydrofuran, dimethylformamide at a temperature of about −10 to 50 ° C. for 5 minutes to By reacting with the aniline derivative represented by the formula (3) for about 72 hours, the anilinoquinazoline derivative represented by the formula (9) is obtained.

次にこれをメタノール、エタノール、ブチルアルコール、ジオキサン、テトラヒドロフラン、ジメチルホルムアミド等の溶媒中、アンモニア水、ナトリウムメトキシド、ナトリウムエトキシド、水酸化ナトリウム水溶液、水酸化カリウム水溶液等の塩基性物質または塩酸、硫酸等の酸性物質とともに、0〜150℃程度の温度で、5分間〜72時間程度反応させて、式(10)で表される6−ヒドロキシアニリノキナゾリン誘導体を得る。   Next, in a solvent such as methanol, ethanol, butyl alcohol, dioxane, tetrahydrofuran, or dimethylformamide, a basic substance such as aqueous ammonia, sodium methoxide, sodium ethoxide, aqueous sodium hydroxide, aqueous potassium hydroxide, or hydrochloric acid, A 6-hydroxyanilinoquinazoline derivative represented by the formula (10) is obtained by reacting with an acidic substance such as sulfuric acid at a temperature of about 0 to 150 ° C. for about 5 minutes to 72 hours.

次にこれを不活性ガスの存在下、ピリジン、トリエチルアミン、炭酸ナトリウム、炭酸水素ナトリウム、ジメチルアミノピリジン、2,6−ルチジン等の塩基とともに、−50〜100℃程度の温度で、5分間〜72時間程度、無水トリフラートと反応させて、式(11)で表されるアニリノキナゾリンのトリフラート化合物を得る。   Next, in the presence of an inert gas, together with a base such as pyridine, triethylamine, sodium carbonate, sodium hydrogen carbonate, dimethylaminopyridine, 2,6-lutidine and the like at a temperature of about −50 to 100 ° C. for 5 minutes to 72 minutes. By reacting with anhydrous triflate for about an hour, the triflate compound of anilinoquinazoline represented by the formula (11) is obtained.

次にこれを不活性ガスの存在下、ジオキサン、テトラヒドロフラン、ジメチルホルムアミド、アセトニトリル等の溶媒中、パラジウム錯体単独、またはテトラキストリフェニルホスフィンパラジウム、ジベンジルデンアセトンパラジウム等の0価パラジウム錯体もしくは塩化パラジウム、酢酸パラジウム等の2価のパラジウム塩とホスフィン配位子(トリフェニルホスフィン、トリシクロヘキシルホスフィン、トリブチルホスフィン、ジフェニルホスフィノフェロセン、ジフェニルホスフィノエタン、ジフェニルホスフィノプロパン、ジフェニルホスフィノブタン等)との組合せ等の触媒とともに、0〜150℃程度の温度で、5分間〜72時間程度、式(5)で表されるジボロンエステルと反応させて、式(12)で表されるアニリノキナゾリンのホウ酸エステル化合物を得る。   Next, in the presence of an inert gas, in a solvent such as dioxane, tetrahydrofuran, dimethylformamide, acetonitrile, palladium complex alone, or a zerovalent palladium complex such as tetrakistriphenylphosphine palladium, dibenzyldenacetone palladium, or palladium chloride, Combinations of divalent palladium salts such as palladium acetate and phosphine ligands (triphenylphosphine, tricyclohexylphosphine, tributylphosphine, diphenylphosphinoferrocene, diphenylphosphinoethane, diphenylphosphinopropane, diphenylphosphinobutane, etc.) And an anilinoquina represented by the formula (12) by reacting with the diboron ester represented by the formula (5) at a temperature of about 0 to 150 ° C. for about 5 minutes to 72 hours. Obtaining a phosphoric boric acid ester compound.

次いでこれにメタノール、エタノール、プロパノール、イソプロピルアルコール、ブチルアルコール、ジオキサン、テトラヒドロフラン、ジメチルホルムアミド等の溶媒の存在下、フッ化水素カリウム水溶液、または酢酸、塩酸、硫酸、硝酸等の酸を加え、−10〜50℃程度の温度で、5分間〜72時間程度反応させる。これにフェニルホウ酸、イソブチルホウ酸、アリルホウ酸等のホウ酸化合物を加え、−10〜50℃程度の温度で、5分間〜72時間程度反応させることにより、式(13)で表される化合物を得ることができる。このとき、必要に応じてペンタン、ヘキサン、ヘプタン、オクタン等のアルカン系溶媒を用いて、エステル交換反応により生成するホウ酸エステル化合物を抽出、取り除くことにより、より効果的に式(13)で表される化合物を得ることができる。   Subsequently, an aqueous solution of potassium hydrogen fluoride or an acid such as acetic acid, hydrochloric acid, sulfuric acid, nitric acid or the like is added in the presence of a solvent such as methanol, ethanol, propanol, isopropyl alcohol, butyl alcohol, dioxane, tetrahydrofuran, dimethylformamide, and the like. The reaction is carried out at a temperature of about -50 ° C for about 5 minutes to 72 hours. A boric acid compound such as phenyl boric acid, isobutyl boric acid, and allyl boric acid is added to this and reacted at a temperature of about −10 to 50 ° C. for about 5 minutes to 72 hours, whereby the compound represented by formula (13) is obtained. Obtainable. At this time, if necessary, by using an alkane solvent such as pentane, hexane, heptane, and octane, the borate ester compound produced by the transesterification reaction is extracted and removed, thereby more effectively expressing the formula (13). Can be obtained.

なお式(8)で表される6−アセトキシ4−クロロキナゾリン誘導体は、Bioorg. Med. Chem. Lett., 11, 1911, 2001に記載の方法またはこれに準じた方法にて合成することができる。   The 6-acetoxy 4-chloroquinazoline derivative represented by the formula (8) can be synthesized by the method described in Bioorg. Med. Chem. Lett., 11, 1911, 2001 or a method analogous thereto. .

Figure 2009242240
Figure 2009242240

上記反応式中、R1、R2、R8、R9は前記定義と同じである。
式(14)で表される4−クロロキナゾリン誘導体を、イソプロピルアルコール、エタノール、ブチルアルコール、ジオキサン、テトラヒドロフラン、ジメチルホルムアミド等の溶媒中、0〜150℃程度の温度で、5分間〜72時間程度、式(15)で表されるアニリンのホウ酸エステル化合物と反応させて、式(16)で表されるアニリノキナゾリンのホウ酸エステル化合物を得る。
In the above reaction formula, R 1 , R 2 , R 8 and R 9 are the same as defined above.
4-chloroquinazoline derivative represented by the formula (14) in a solvent such as isopropyl alcohol, ethanol, butyl alcohol, dioxane, tetrahydrofuran, dimethylformamide and the like at a temperature of about 0 to 150 ° C. for about 5 minutes to about 72 hours, Reaction with an aniline borate compound represented by the formula (15) yields an anilinoquinazoline borate compound represented by the formula (16).

次いでこれにメタノール、エタノール、プロパノール、イソプロピルアルコール、ブチルアルコール、ジオキサン、テトラヒドロフラン、ジメチルホルムアミド等の溶媒の存在下、フッ化水素カリウム水溶液、または酢酸、塩酸、硫酸、硝酸等の酸を加え、−10〜50℃程度の温度で、5分間〜72時間程度反応させることにより、式(17)で表される化合物を得ることができる。   Subsequently, an aqueous solution of potassium hydrogen fluoride or an acid such as acetic acid, hydrochloric acid, sulfuric acid, nitric acid or the like is added in the presence of a solvent such as methanol, ethanol, propanol, isopropyl alcohol, butyl alcohol, dioxane, tetrahydrofuran, dimethylformamide, and the like. By reacting at a temperature of about 50 ° C. for about 5 minutes to 72 hours, a compound represented by the formula (17) can be obtained.

また式(14)で表される4−クロロキナゾリン誘導体を、イソプロピルアルコール、エタノール、ブチルアルコール、ジオキサン、テトラヒドロフラン、ジメチルホルムアミド等の溶媒中、炭酸カリウム、炭酸ナトリウム、炭酸水素ナトリウム、炭酸水素カリウム、炭酸セシウム、カリウムtert-ブトキシド、水素化ナトリウム、水素化カリウム、水素化カルシウム等の触媒とともに、0〜150℃程度の温度で、5分間〜72時間程度、式(18)で表される3−ヒドロキシフェニルホウ酸と反応させて、式(19)で表される化合物を得ることができる。   The 4-chloroquinazoline derivative represented by the formula (14) is mixed with potassium carbonate, sodium carbonate, sodium bicarbonate, potassium bicarbonate, carbonate in a solvent such as isopropyl alcohol, ethanol, butyl alcohol, dioxane, tetrahydrofuran, dimethylformamide and the like. 3-hydroxy represented by the formula (18) at a temperature of about 0 to 150 ° C. for about 5 minutes to 72 hours together with a catalyst such as cesium, potassium tert-butoxide, sodium hydride, potassium hydride, calcium hydride and the like. By reacting with phenylboric acid, a compound represented by the formula (19) can be obtained.

さらに式(14)で表される4−クロロキナゾリン誘導体を、イソプロピルアルコール、エタノール、ブチルアルコール、ジオキサン、テトラヒドロフラン、ジメチルホルムアミド等の溶媒中、濃塩酸、濃硫酸、濃硝酸等の触媒とともに、−50〜100℃程度の温度で、5分間〜72時間程度、式(20)で表される3−アミノフェニルホウ酸と反応させて、式(21)で表される化合物を得ることができる。
なお式(14)で表される4−クロロキナゾリン誘導体は、Tetrahedron Letter., 47, 2539, 2006に記載の方法またはこれに準じた方法にて合成することができる。
Further, the 4-chloroquinazoline derivative represented by the formula (14) is mixed with a catalyst such as concentrated hydrochloric acid, concentrated sulfuric acid, concentrated nitric acid in a solvent such as isopropyl alcohol, ethanol, butyl alcohol, dioxane, tetrahydrofuran, dimethylformamide, and the like. The compound represented by the formula (21) can be obtained by reacting with 3-aminophenylboric acid represented by the formula (20) at a temperature of about -100 ° C for about 5 minutes to 72 hours.
The 4-chloroquinazoline derivative represented by the formula (14) can be synthesized by the method described in Tetrahedron Letter., 47, 2539, 2006 or a method analogous thereto.

Figure 2009242240
Figure 2009242240

式中、nは前記定義と同じである。
式(22)で表される4−クロロキナゾリン誘導体を、イソプロピルアルコール、エタノール、ブチルアルコール、ジオキサン、テトラヒドロフラン、ジメチルホルムアミド等の溶媒中、濃塩酸、濃硫酸、濃硝酸等の触媒とともに、−50〜100℃程度の温度で、5分間〜72時間程度、式(23)で表されるアミノフェニルホウ酸と反応させて、式(24)で表される化合物を得ることができる。
In the formula, n is the same as defined above.
The 4-chloroquinazoline derivative represented by the formula (22) is mixed with a catalyst such as concentrated hydrochloric acid, concentrated sulfuric acid, concentrated nitric acid in a solvent such as isopropyl alcohol, ethanol, butyl alcohol, dioxane, tetrahydrofuran, dimethylformamide, and the like. The compound represented by the formula (24) can be obtained by reacting with the aminophenylboric acid represented by the formula (23) at a temperature of about 100 ° C. for about 5 minutes to 72 hours.

またこのとき、式(22)で表される4−クロロキナゾリン誘導体を前記式(15)で表されるアニリンのホウ酸エステル化合物と反応させて、アニリノキナゾリンのホウ酸エステル化合物を得、これを上記製造法3の例に示した方法と同様にして式(24)で表される化合物を導くこともできる。   At this time, the 4-chloroquinazoline derivative represented by the formula (22) is reacted with the aniline borate compound represented by the formula (15) to obtain an anilinoquinazoline borate compound. The compound represented by the formula (24) can be derived in the same manner as in the production method 3 described above.

なお式(22)で表される4−クロロキナゾリン誘導体は、Tetrahedron Letter., 47, 2539, 2006に記載の方法またはこれに準じた方法にて合成することができる。   The 4-chloroquinazoline derivative represented by the formula (22) can be synthesized by the method described in Tetrahedron Letter., 47, 2539, 2006 or a method analogous thereto.

上記各製造法において、反応の中間体および目的とする本発明化合物は、有機合成化学の分野において常用される分離精製法、例えば、ろ過、抽出、洗浄、乾燥、濃縮、再結晶、各種クロマトグラフィー等の手段を用いて、単離精製することができる。なお中間体においては、特に単離精製することなく、次の反応に供することもできる。   In each of the above production methods, the intermediate of the reaction and the target compound of the present invention are separated and purified commonly used in the field of synthetic organic chemistry, such as filtration, extraction, washing, drying, concentration, recrystallization, and various chromatography. It can be isolated and purified using such means. The intermediate can be subjected to the next reaction without any particular isolation and purification.

本発明化合物の中には、位置異性体、幾何異性体、光学異性体、互変異性体等の立体異性体が存在し得るものがあるが、本発明はこれら全ての異性体およびそれらの混合物をも包含する。   Some of the compounds of the present invention may have stereoisomers such as positional isomers, geometric isomers, optical isomers, tautomers, etc., but the present invention includes all these isomers and mixtures thereof. Is also included.

本発明化合物の塩を取得する場合、当該化合物が塩の形で得られるときはそのまま精製すればよく、また遊離の形で得られるときは、当該化合物を適当な溶媒に溶解または懸濁し、酸または塩基を加えることにより塩を形成させて単離・精製すればよい。   When obtaining a salt of the compound of the present invention, if the compound is obtained in the form of a salt, it may be purified as it is. If it is obtained in a free form, the compound is dissolved or suspended in a suitable solvent, and the acid is obtained. Alternatively, it may be isolated and purified by adding a base to form a salt.

また式(1)の化合物および薬学的に許容されるその塩は、水または各種溶媒との付加物の形で存在することもあるが、これらの付加物も本発明化合物に包含される。   The compound of formula (1) and pharmaceutically acceptable salts thereof may exist in the form of adducts with water or various solvents, and these adducts are also included in the compounds of the present invention.

本発明に係る式(1)の化合物または薬学的に許容されるその塩は、受容体型チロシンキナーゼを介する疾患の治療に有用である。係る疾患としては、例えば悪性腫瘍が挙げられ、具体的には白血病、多発性骨髄腫、リンパ腫等の非固形腫瘍、また胆管、骨、膀胱、脳/CNS、***、結直腸、子宮内膜、胃、頭頸部、肝臓、肺、神経細胞、食道、卵巣、膵臓、前立腺、腎臓、皮膚、精巣、甲状腺、子宮、膣等の癌に代表される固形腫瘍が挙げられる。   The compound of the formula (1) or a pharmaceutically acceptable salt thereof according to the present invention is useful for the treatment of diseases mediated by receptor tyrosine kinases. Examples of such diseases include malignant tumors, specifically non-solid tumors such as leukemia, multiple myeloma, lymphoma, and bile duct, bone, bladder, brain / CNS, breast, colorectal, endometrium, Solid tumors represented by cancers such as stomach, head and neck, liver, lung, nerve cell, esophagus, ovary, pancreas, prostate, kidney, skin, testis, thyroid, uterus, vagina and the like can be mentioned.

本発明に係る式(1)の化合物または薬学的に許容されるその塩は、そのまま単独で投与することも可能であるが、通常各種の医薬製剤として、動物用、特にヒト用として提供するのが望ましい。係る医薬製剤は、式(1)で表される化合物または薬学的に許容されるその塩を、薬学的に許容される一種またはそれ以上の担体とともに混合し、医薬組成物として、常法により製造される。   The compound of formula (1) or a pharmaceutically acceptable salt thereof according to the present invention can be administered alone as it is, but is usually provided as various pharmaceutical preparations for animals, particularly for humans. Is desirable. Such a pharmaceutical preparation is prepared by mixing a compound represented by the formula (1) or a pharmaceutically acceptable salt thereof together with one or more pharmaceutically acceptable carriers to prepare a pharmaceutical composition by a conventional method. Is done.

投与経路としては、治療に際し最も効果的なものを使用するのが好ましく、経口投与、または静脈内などの非経口投与を挙げることができる。   As the administration route, it is preferable to use one that is most effective in the treatment, and examples thereof include oral administration and parenteral administration such as intravenous administration.

投与形態としては、例えば錠剤、注射剤等が挙げられる。
経口投与に際しては、例えば錠剤においては、乳糖等の賦形剤、ゼンプン等の崩壊剤、ステアリン酸マグネシウム等の滑沢剤、ヒドロキシプロピルメチルセルロース等の結合剤等を用いて製造することができる。
非経口投与に際しては、例えば注射剤においては、塩溶液、ブドウ糖溶液、塩水とブドウ糖溶液の混合液等を用いて製造することができる。
式(1)の化合物または薬学的に許容されるその塩の投与量および投与回数は、投与形態、患者の年齢、体重、治療すべき症状の性質もしくは重篤度等により異なるが、通常経口の場合、成人一人あたり、1回につき0.01〜1,000mg、好ましくは0.05〜500mgの範囲で、1日1回ないし数回投与する。静脈内投与等の非経口投与の場合、通常成人一人あたり0.001〜1,000mg、好ましくは0.01〜300mgを1日1回ないし数回投与する。
Examples of the dosage form include tablets and injections.
For oral administration, for example, tablets can be produced using excipients such as lactose, disintegrants such as Sempun, lubricants such as magnesium stearate, binders such as hydroxypropylmethylcellulose, and the like.
For parenteral administration, for example, an injection can be produced using a salt solution, a glucose solution, a mixed solution of a saline solution and a glucose solution, or the like.
The dose and frequency of administration of the compound of formula (1) or a pharmaceutically acceptable salt thereof vary depending on the administration form, patient age, body weight, nature or severity of symptoms to be treated, etc. In this case, it is administered once or several times a day in the range of 0.01 to 1,000 mg, preferably 0.05 to 500 mg per adult per person. In the case of parenteral administration such as intravenous administration, usually 0.001 to 1,000 mg, preferably 0.01 to 300 mg, is administered once a day to several times per adult.

以下、本発明につき実施例を挙げてより具体的に説明するが、その要旨を超えない限り、以下の実施例に限定されるものではない。   EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated more concretely, unless it exceeds the summary, it is not limited to a following example.

Figure 2009242240
Figure 2009242240

(合成例1)4−アニリノ−6−ヨードキナゾリン4aの合成
4−クロロ−6−ヨードキナゾリン(5.44g,18.8mmol、Gaul,M,.D.et.al.Bioorg.Med.Chem.Lett.2003,13,637により報告された化合物)をイソプロピルアルコール(150mL)に溶かし、3−クロロアニリン(2.01mL,19.0mmol)を加えて攪拌した。24時間後、析出した固体をろ過してイソプロピルアルコールで洗った。得られた固体を真空ポンプで乾燥させ、アニリノキナゾリン4a(4.93g,12.9mmol,69%)を得た。
Synthesis Example 1 Synthesis of 4-anilino-6-iodoquinazoline 4a 4-chloro-6-iodoquinazoline (5.44 g, 18.8 mmol, Gaul, M, D. et al. Bioorg. Med. Chem. Lett. 2003, 13, 637) was dissolved in isopropyl alcohol (150 mL), and 3-chloroaniline (2.01 mL, 19.0 mmol) was added and stirred. After 24 hours, the precipitated solid was filtered and washed with isopropyl alcohol. The obtained solid was dried with a vacuum pump to obtain anilinoquinazoline 4a (4.93 g, 12.9 mmol, 69%).

(3−クロロフェニル)−(6−ヨードキナゾリン−4−イル)アミン(4a).
1H-NMR(400MHz;CD3OD)δ:8.99(s,1H), 8.77(s,1H), 8.32(d,J=9.2Hz,1H), 7.80(s,1H), 7.54-7.58(m,2H), 7.39(t,J=8.0Hz,1H), 7.29(d,J=8.0Hz,1H)
MS(APCI)m/z 382([M+H]+)
(3-Chlorophenyl)-(6-iodoquinazolin-4-yl) amine (4a).
1 H-NMR (400 MHz; CD 3 OD) δ: 8.99 (s, 1H), 8.77 (s, 1H), 8.32 (d, J = 9.2 Hz, 1H), 7.80 (s, 1H), 7.54-7.58 ( m, 2H), 7.39 (t, J = 8.0Hz, 1H), 7.29 (d, J = 8.0Hz, 1H)
MS (APCI) m / z 382 ([M + H] + )

(合成例2)4−アニリノ−6−ヨードキナゾリン4bの合成
アニリノキナゾリン4aの合成と同様の操作で4−クロロ−6−ヨードキナゾリン(643mg,2.20mmol)、3−クロロ−4−フルオロアニリン(306mg,2.1mmol)、イソプロピルアルコール(20mL)を用いてアニリノキナゾリン4b(763mg,1.91mmol,87%)を得た。
(Synthesis Example 2) Synthesis of 4-anilino-6-iodoquinazoline 4b 4-Chloro-6-iodoquinazoline (643 mg, 2.20 mmol), 3-chloro-4-fluoro was prepared in the same manner as the synthesis of anilinoquinazoline 4a. Anilinoquinazoline 4b (763 mg, 1.91 mmol, 87%) was obtained using aniline (306 mg, 2.1 mmol) and isopropyl alcohol (20 mL).

(3−クロロ−4−フルオロフェニル)−(6−ヨードキナゾリン−4−イル)アミン(4b).
1H-NMR(300MHz;CD3OD)δ:8.95(d,J=3.0Hz,1H), 8.74(s,1H), 8.30(dd,J=3.0Hz,9.0Hz,1H), 7.90(dd,J=3.0Hz,6.0Hz,1H), 7.57-7.62(m,1H), 7.55(d,J=9.0Hz,1H), 7.28(t,J=9.0Hz,1H)
MS(APCI)m/z 400([M+H]+)
(3-Chloro-4-fluorophenyl)-(6-iodoquinazolin-4-yl) amine (4b).
1 H-NMR (300 MHz; CD 3 OD) δ: 8.95 (d, J = 3.0 Hz, 1 H), 8.74 (s, 1 H), 8.30 (dd, J = 3.0 Hz, 9.0 Hz, 1 H), 7.90 (dd , J = 3.0Hz, 6.0Hz, 1H), 7.57-7.62 (m, 1H), 7.55 (d, J = 9.0Hz, 1H), 7.28 (t, J = 9.0Hz, 1H)
MS (APCI) m / z 400 ([M + H] + )

(合成例3)ホウ酸エステル5aの合成
アルゴン雰囲気下、アニリノキナゾリン4a(450mg,1.18mmol)、ビスピナコラートジボロン(331mg,1.30mmol)、塩化パラジウム(21mg,0.12mmol)、ジフェニルホスフィノフェロセン(66mg,0.12mmol)、酢酸カリウム(347mg,3.54mmol)をジメチルホルムアミド(20mL)中、80℃で攪拌させた。2時間後室温まで放置し、水を加え酢酸エチルで抽出し、飽和食塩水で洗い、硫酸マグネシウムで乾燥させた。溶媒を除去して得られた残留物を薄層クロマトグラフィー(ヘキサン:酢酸エチル=4:1)で精製し、ホウ酸エステル5a(144mg,0.38mmol,32%)を得た。
(Synthesis Example 3) Synthesis of borate ester 5a Under an argon atmosphere, anilinoquinazoline 4a (450 mg, 1.18 mmol), bispinacolatodiboron (331 mg, 1.30 mmol), palladium chloride (21 mg, 0.12 mmol), Diphenylphosphinoferrocene (66 mg, 0.12 mmol) and potassium acetate (347 mg, 3.54 mmol) were stirred at 80 ° C. in dimethylformamide (20 mL). After 2 hours, the mixture was allowed to stand at room temperature, water was added, the mixture was extracted with ethyl acetate, washed with saturated brine, and dried over magnesium sulfate. The residue obtained by removing the solvent was purified by thin layer chromatography (hexane: ethyl acetate = 4: 1) to obtain boric acid ester 5a (144 mg, 0.38 mmol, 32%).

(3−クロロフェニル)−[6−(4,4,5,5−テトラメチル−[1,3,2]ジオキサボロラン−2−イル)キナゾリン−4−イル]アミン(5a).
1H-NMR(300MHz;CDCl3)δ:8.82(s,1H), 8.34(s,1H), 8.20(dd,J=3.0Hz,6.0Hz,1H), 7.99(t,J=3.0Hz,1H), 7.90(d,J=6.0Hz,1H), 7.62-7.65(m,2H), 7.35(t,J=6.0Hz,1H), 7.16(dd,J=3.0Hz,6.0Hz,1H), 1.41(s,12H)
MS(APCI)m/z 382([M+H]+)
(3-Chlorophenyl)-[6- (4,4,5,5-tetramethyl- [1,3,2] dioxaborolan-2-yl) quinazolin-4-yl] amine (5a).
1 H-NMR (300 MHz; CDCl 3 ) δ: 8.82 (s, 1H), 8.34 (s, 1H), 8.20 (dd, J = 3.0 Hz, 6.0 Hz, 1H), 7.99 (t, J = 3.0 Hz, 1H), 7.90 (d, J = 6.0Hz, 1H), 7.62-7.65 (m, 2H), 7.35 (t, J = 6.0Hz, 1H), 7.16 (dd, J = 3.0Hz, 6.0Hz, 1H) , 1.41 (s, 12H)
MS (APCI) m / z 382 ([M + H] + )

(合成例4)ホウ酸エステル5bの合成
ホウ酸エステル5aの合成と同様の操作でアニリノキナゾリン4b(411mg,1.03mmol)、ビスピナコラートジボロン(289mg,1.14mmol)、塩化パラジウム(18mg,0.10mmol)、ジフェニルホスフィノフェロセン(55mg,0.10mmol)、酢酸カリウム(303mg,3.15mmol)、ジメチルホルムアミド(20mL)を用いてホウ酸エステル5b(174mg,0.44mmol,42%)を得た。
(Synthesis Example 4) Synthesis of borate ester 5b Anilinoquinazoline 4b (411 mg, 1.03 mmol), bispinacholate diboron (289 mg, 1.14 mmol), palladium chloride ( 18 mg, 0.10 mmol), diphenylphosphinoferrocene (55 mg, 0.10 mmol), potassium acetate (303 mg, 3.15 mmol), dimethylformamide (20 mL), borate ester 5b (174 mg, 0.44 mmol, 42%) )

(3−クロロ−4−フルオロフェニル)−[6−(4,4,5,5−テトラメチル−[1,3,2]ジオキサボロラン−2−イル)キナゾリン−4−イル]アミン(5b).
1H-NMR(400MHz;CDCl3)δ:8.80(s,1H), 8.33(s,1H), 8.20(d,J=8.4Hz,1H), 8.01(dd,J=2.4Hz,6.0Hz,1H), 7.90(d,J=8.4Hz,1H), 7.56-7.61(m,2H), 7.20(t,J=8.8Hz,1H), 1.41(s,12H)
MS(APCI)m/z 400([M+H]+)
(3-Chloro-4-fluorophenyl)-[6- (4,4,5,5-tetramethyl- [1,3,2] dioxaborolan-2-yl) quinazolin-4-yl] amine (5b).
1 H-NMR (400 MHz; CDCl 3 ) δ: 8.80 (s, 1H), 8.33 (s, 1H), 8.20 (d, J = 8.4 Hz, 1H), 8.01 (dd, J = 2.4 Hz, 6.0 Hz, 1H), 7.90 (d, J = 8.4Hz, 1H), 7.56-7.61 (m, 2H), 7.20 (t, J = 8.8Hz, 1H), 1.41 (s, 12H)
MS (APCI) m / z 400 ([M + H] + )

(合成例5)ホウ酸化合物6aの合成
ホウ酸エステル5a(144mg,0.38mmol)をメタノール(10mL)に溶かし、フッ化水素カリウム(206mg,2.64mmol)水溶液(10mL)を加えた。12時間攪拌後、ロータリーエバポレーターで溶媒を除去した。フェニルホウ酸(139mg,1.14mmol)、アセトニトリル、ヘキサンを加え、1時間攪拌した後にヘキサン層を除去した。残ったアセトニトリル層をロータリーエバポレーターで溶媒を除去し、薄層クロマトグラフィー(ジクロロメタン:メタノール=20:1)で精製し化合物6a(54mg,0.18mmol,47%)を得た。
(Synthesis Example 5) Synthesis of boric acid compound 6a Boric acid ester 5a (144 mg, 0.38 mmol) was dissolved in methanol (10 mL), and an aqueous solution (10 mL) of potassium hydrogen fluoride (206 mg, 2.64 mmol) was added. After stirring for 12 hours, the solvent was removed with a rotary evaporator. Phenylboric acid (139 mg, 1.14 mmol), acetonitrile and hexane were added and stirred for 1 hour, and then the hexane layer was removed. The solvent was removed from the remaining acetonitrile layer with a rotary evaporator and purified by thin layer chromatography (dichloromethane: methanol = 20: 1) to obtain compound 6a (54 mg, 0.18 mmol, 47%).

4−(3−クロロフェニルアミノ)キナゾリン−6−イルボロン酸(6a).
1H-NMR(300MHz;CD3OD)δ:8.62(s,1H), 8.49(s,1H), 8.06(d,J=9.0Hz,1H), 7.89(s,1H), 7.59-7.66(m,2H), 7.27(t,J=9.0Hz,1H), 7.07(d,J=9.0Hz,1H)
MS(ESI)m/z 300([C14H9ClN3B(OH)2+H]+), 314([C14H9ClN3B(OH)(OMe)+H]+)
4- (3-Chlorophenylamino) quinazolin-6-ylboronic acid (6a).
1 H-NMR (300 MHz; CD 3 OD) δ: 8.62 (s, 1H), 8.49 (s, 1H), 8.06 (d, J = 9.0 Hz, 1H), 7.89 (s, 1H), 7.59-7.66 ( m, 2H), 7.27 (t, J = 9.0Hz, 1H), 7.07 (d, J = 9.0Hz, 1H)
MS (ESI) m / z 300 ([C 14 H 9 ClN 3 B (OH) 2 + H] + ), 314 ([C 14 H 9 ClN 3 B (OH) (OMe) + H] + )

(合成例6)ホウ酸化合物6bの合成
ホウ酸化合物6aの合成と同様の操作でホウ酸エステル5b(35mg,0.09mmol)、メタノール(3mL)、フッ化水素カリウム(48mg,0.61mmol)、水(3mL)、フェニルホウ酸(32mg,0.26mmol)を用いてホウ酸化合物6b(9mg,0.03mmol,32%)を得た。
(Synthesis Example 6) Synthesis of boric acid compound 6b Boric acid ester 5b (35 mg, 0.09 mmol), methanol (3 mL), potassium hydrogen fluoride (48 mg, 0.61 mmol) were prepared in the same manner as the synthesis of boric acid compound 6a. Boric acid compound 6b (9 mg, 0.03 mmol, 32%) was obtained using water (3 mL) and phenylboric acid (32 mg, 0.26 mmol).

4−(3−クロロ−4−フルオロフェニルアミノ)キナゾリン−6−イルボロン酸(6b).
1H-NMR(400MHz;CD3OD)δ:8.85(s,1H), 8.68(s,1H), 8.30(d,J=8.4Hz,1H), 7.82(dd,J=2.4Hz,6.8Hz,1H), 7.70(d,J=8.4Hz,1H), 7.53-7.57(m,1H), 7.25(t,J=8.8Hz,1H)
MS(ESI)m/z 318([C14H9ClFN3B(OH)2+H]+), 332([C14H9ClFN3B(OH)(OMe)+H]+)
4- (3-Chloro-4-fluorophenylamino) quinazolin-6-ylboronic acid (6b).
1 H-NMR (400 MHz; CD 3 OD) δ: 8.85 (s, 1H), 8.68 (s, 1H), 8.30 (d, J = 8.4 Hz, 1H), 7.82 (dd, J = 2.4 Hz, 6.8 Hz) , 1H), 7.70 (d, J = 8.4Hz, 1H), 7.53-7.57 (m, 1H), 7.25 (t, J = 8.8Hz, 1H)
MS (ESI) m / z 318 ([C 14 H 9 ClFN 3 B (OH) 2 + H] + ), 332 ([C 14 H 9 ClFN 3 B (OH) (OMe) + H] + )

Figure 2009242240
Figure 2009242240

(合成例7)トリフラート7aの合成
6−アセトキシ−4−クロロ−7−メトキシキナゾリン(504mg,1.99mmol、Barker,A.J.et al.Bioorg.Med.Chem.Lett.2001,11,1911.の報告により合成した)、3−クロロアニリン(0.23mL,2.19mmol)をイソプロピルアルコール(15mL)溶媒中で2時間加熱還流した。室温まで放置した後、析出した固体をろ過してイソプロピルアルコールで洗った。
得られた固体をメタノール(10mL)に溶かし25%アンモニア水(2mL)を加え、室温で8時間攪拌した。ロータリーエバポレーターで溶媒を除去し、ジクロロメタンを加えてろ過し、得られた固体を真空ポンプで乾燥させた。
アルゴン雰囲気下で、その固体にピリジン(5mL)を加え、氷浴で0℃に冷却し、無水トリフラートを徐々に加えた。室温に戻し7時間攪拌後、ロータリーエバポレーターで溶媒を除去し、シリカゲルクロマトグラフィー(ヘキサン:酢酸エチル=4:1)で精製し、化合物7a(133mg,0.31mmol,3steps15%)を得た。
Synthesis Example 7 Synthesis of Triflate 7a 6-acetoxy-4-chloro-7-methoxyquinazoline (504 mg, 1.99 mmol, Barker, AJ et al. Bioorg. Med. Chem. Lett. 2001, 11, 1911 3-chloroaniline (0.23 mL, 2.19 mmol) was heated to reflux in isopropyl alcohol (15 mL) solvent for 2 hours. After leaving to room temperature, the precipitated solid was filtered and washed with isopropyl alcohol.
The obtained solid was dissolved in methanol (10 mL), 25% aqueous ammonia (2 mL) was added, and the mixture was stirred at room temperature for 8 hr. The solvent was removed with a rotary evaporator, dichloromethane was added for filtration, and the obtained solid was dried with a vacuum pump.
Under an argon atmosphere, pyridine (5 mL) was added to the solid, cooled to 0 ° C. in an ice bath, and anhydrous triflate was added slowly. After returning to room temperature and stirring for 7 hours, the solvent was removed with a rotary evaporator and the residue was purified by silica gel chromatography (hexane: ethyl acetate = 4: 1) to obtain Compound 7a (133 mg, 0.31 mmol, 3 steps 15%).

トリフルオロメタンスルホン酸4−(3−クロロ−フェニルアミノ)−7−メトキシキナゾリン−6−イル エステル(7a).
1H-NMR(400MHz;CDCl3)δ:8.77(s,1H), 7.89(s,1H), 7.73(s,1H), 7.55(d,J=8.4Hz,1H), 7.42(s,1H), 7.36(t,J=8.4Hz,1H), 7.19(d,J=9.2Hz,1H), 4.07(s,3H)
MS(APCI)m/z 434([M+H]+)
Trifluoromethanesulfonic acid 4- (3-chloro-phenylamino) -7-methoxyquinazolin-6-yl ester (7a).
1 H-NMR (400 MHz; CDCl 3 ) δ: 8.77 (s, 1H), 7.89 (s, 1H), 7.73 (s, 1H), 7.55 (d, J = 8.4 Hz, 1H), 7.42 (s, 1H ), 7.36 (t, J = 8.4Hz, 1H), 7.19 (d, J = 9.2Hz, 1H), 4.07 (s, 3H)
MS (APCI) m / z 434 ([M + H] + )

(合成例8)トリフラート7bの合成
トリフラート7aの合成と同様の操作で6−アセトキシ−4−クロロ−7−メトキシキナゾリン(488mg,1.93mmol)、3−クロロ−4−フルオロアニリン(309mg,2.12mmol)、イソプロピルアルコール(28mL)を用い、次に25%アンモニア水(2mL)、メタノール(10mL)、最後にピリジン(10mL)、無水トリフラート(0.64mL,3.86mmol)によってトリフラート7b(575mg,1.27mmol,66%)を得た。
Synthesis Example 8 Synthesis of Triflate 7b 6-Acetoxy-4-chloro-7-methoxyquinazoline (488 mg, 1.93 mmol), 3-chloro-4-fluoroaniline (309 mg, 2) were prepared in the same manner as the synthesis of triflate 7a. .12 mmol), isopropyl alcohol (28 mL), then 25% aqueous ammonia (2 mL), methanol (10 mL), finally pyridine (10 mL), triflate 7b (575 mg) with anhydrous triflate (0.64 mL, 3.86 mmol). , 1.27 mmol, 66%).

トリフルオロメタンスルホン酸4−(3−クロロ−4−フルオロフェニルアミノ)−7−メトキシキナゾリン−6−イル エステル(7b).
1H-NMR(400MHz;CDCl3)δ:8.74(s,1H), 7.90(dd,J=2.8Hz,6.4Hz,1H), 7.73(s,1H), 7.49-7.53(m,1H), 7.42(s,1H), 7.21(t,J=8.8Hz,1H), 4.07(s,3H)
Trifluoromethanesulfonic acid 4- (3-chloro-4-fluorophenylamino) -7-methoxyquinazolin-6-yl ester (7b).
1 H-NMR (400 MHz; CDCl 3 ) δ: 8.74 (s, 1H), 7.90 (dd, J = 2.8 Hz, 6.4 Hz, 1H), 7.73 (s, 1H), 7.49-7.53 (m, 1H), 7.42 (s, 1H), 7.21 (t, J = 8.8Hz, 1H), 4.07 (s, 3H)

(実施例1)ホウ酸エステル8aの合成
ホウ酸エステル5a同様の操作でトリフラート7a(40mg,0.09mmol)、ビスピナコラートジボロン(35mg,0.14mmol)、塩化パラジウム(2mg,0.01mmol)、ジフェニルホスフィノフェロセン(6mg,0.01mmol)、酢酸カリウム(27mg,0.28mmol)、ジメチルホルムアミド(2mL)を用いて8a(22mg,0.05mmol,58%)を得た。
(Example 1) Synthesis of borate ester 8a Triflate 7a (40 mg, 0.09 mmol), bispinacolato diboron (35 mg, 0.14 mmol), palladium chloride (2 mg, 0.01 mmol) in the same manner as borate ester 5a ), Diphenylphosphinoferrocene (6 mg, 0.01 mmol), potassium acetate (27 mg, 0.28 mmol), dimethylformamide (2 mL) to obtain 8a (22 mg, 0.05 mmol, 58%).

(3−クロロフェニル)−[7−メトキシ−6−(4,4,5,5−テトラメチル−[1,3,2]ジオキサボロラン−2−イル)キナゾリン−4−イル]アミン(8a).
1H-NMR(400MHz;CDCl3)δ:8.73(s,1H), 8.32(s,1H), 7.92(s,1H), 7.85(bs,1H), 7.59(d,J=8.0Hz,1H), 7.30(t,J=8.0Hz,1H), 7.19(s,1H), 7.11(d,J=7.6Hz,1H), 3.95(s,3H), 1.37(s,12H)
MS(APCI)m/z 412([M+H]+)
(3-Chlorophenyl)-[7-methoxy-6- (4,4,5,5-tetramethyl- [1,3,2] dioxaborolan-2-yl) quinazolin-4-yl] amine (8a).
1 H-NMR (400 MHz; CDCl 3 ) δ: 8.73 (s, 1H), 8.32 (s, 1H), 7.92 (s, 1H), 7.85 (bs, 1H), 7.59 (d, J = 8.0 Hz, 1H ), 7.30 (t, J = 8.0Hz, 1H), 7.19 (s, 1H), 7.11 (d, J = 7.6Hz, 1H), 3.95 (s, 3H), 1.37 (s, 12H)
MS (APCI) m / z 412 ([M + H] + )

(実施例2)ホウ酸エステル8bの合成
ホウ酸エステル5a同様の操作でトリフラート7b(252mg,0.56mmol)、ビスピナコラートジボロン(170mg,0.67mmol)、塩化パラジウム(11mg,0.06mmol)、ジフェニルホスフィノフェロセン(33mg,0.06mmol)、酢酸カリウム(165mg,1.68mmol)、ジメチルホルムアミド(15mL)を用いて8b(51mg,0.12mmol,21%)を得た。
(Example 2) Synthesis of boric acid ester 8b By the same operation as boric acid ester 5a, triflate 7b (252 mg, 0.56 mmol), bispinacolato diboron (170 mg, 0.67 mmol), palladium chloride (11 mg, 0.06 mmol) ), Diphenylphosphinoferrocene (33 mg, 0.06 mmol), potassium acetate (165 mg, 1.68 mmol), dimethylformamide (15 mL) to obtain 8b (51 mg, 0.12 mmol, 21%).

(3−クロロ−4−フルオロフェニル)−[7−メトキシ−6−(4,4,5,5−テトラメチル−[1,3,2]ジオキサボロラン−2−イル)キナゾリン−4−イル]アミン(8b).
1H-NMR(400MHz;CDCl3)δ:8.70(s,1H), 8.25(s,1H), 7.93(dd,J=2.8Hz,6.4Hz,1H), 7.59(bs,1H), 7.53-7.57(m,1H), 7.19(s,1H), 7.16(t,J=8.4Hz,1H), 3.96(s,3H), 1,38(s,12H)
MS(ESI)m/z 430([M+H]+)
(3-Chloro-4-fluorophenyl)-[7-methoxy-6- (4,4,5,5-tetramethyl- [1,3,2] dioxaborolan-2-yl) quinazolin-4-yl] amine (8b).
1 H-NMR (400 MHz; CDCl 3 ) δ: 8.70 (s, 1H), 8.25 (s, 1H), 7.93 (dd, J = 2.8 Hz, 6.4 Hz, 1H), 7.59 (bs, 1H), 7.53- 7.57 (m, 1H), 7.19 (s, 1H), 7.16 (t, J = 8.4Hz, 1H), 3.96 (s, 3H), 1,38 (s, 12H)
MS (ESI) m / z 430 ([M + H] + )

(実施例3)ホウ酸化合物9aの合成
ホウ酸化合物6a同様の操作でホウ酸エステル8a(22mg,0.05mmol)、メタノール(2mL)、KHF2(29mg,0.37mmol)、水(2mL)、フェニルホウ酸(26mg,0.21mmol)を用いて9a(8mg,0.02mmol,48%)を得た。
(Example 3) Synthesis of boric acid compound 9a In the same manner as boric acid compound 6a, boric acid ester 8a (22 mg, 0.05 mmol), methanol (2 mL), KHF 2 (29 mg, 0.37 mmol), water (2 mL) 9a (8 mg, 0.02 mmol, 48%) was obtained using phenylboric acid (26 mg, 0.21 mmol).

4−(3−クロロフェニルアミノ)−7−メトキシキナゾリン−6−イルボロン酸(9a).
1H-NMR(400MHz;CD3OD)δ:8.41(s,1H), 8.20(bs,1H), 7.85(t,J=2.0Hz,1H), 7.56(dq,J=0.8Hz,8.0Hz,1H), 7.24(t,J=8.0Hz,1H), 7.04(s,1H), 7.04(dq,J=0.8Hz,8.0Hz,1H), 3.89(s,3H)
MS(ESI)m/z 330([C15H11ClN3OB(OH)2+H]+), 344([C15H11ClN3OB(OH)(OMe)+H]+)
4- (3-Chlorophenylamino) -7-methoxyquinazolin-6-ylboronic acid (9a).
1 H-NMR (400 MHz; CD 3 OD) δ: 8.41 (s, 1H), 8.20 (bs, 1H), 7.85 (t, J = 2.0 Hz, 1H), 7.56 (dq, J = 0.8 Hz, 8.0 Hz) , 1H), 7.24 (t, J = 8.0Hz, 1H), 7.04 (s, 1H), 7.04 (dq, J = 0.8Hz, 8.0Hz, 1H), 3.89 (s, 3H)
MS (ESI) m / z 330 ([C 15 H 11 ClN 3 OB (OH) 2 + H] + ), 344 ([C 15 H 11 ClN 3 OB (OH) (OMe) + H] + )

(実施例4)ホウ酸化合物9bの合成
ホウ酸化合物6a同様の操作でホウ酸エステル8b(40mg,0.09mmol)、メタノール(2mL)、KHF2(51mg,0.65mmol)、水(2mL)、フェニルホウ酸(33mg,0.27mmol)を用いて9b(13mg,0.04mmol,41%)を得た。
(Example 4) Synthesis of boric acid compound 9b In the same manner as boric acid compound 6a, boric acid ester 8b (40 mg, 0.09 mmol), methanol (2 mL), KHF 2 (51 mg, 0.65 mmol), water (2 mL) 9b (13 mg, 0.04 mmol, 41%) was obtained using phenylboric acid (33 mg, 0.27 mmol).

4−(3−クロロ−4−フルオロフェニルアミノ)−7−メトキシキナゾリン−6−イルボロン酸(9b).
1H-NMR(400MHz;CD3OD)δ:8.39(s,1H), 8.18(bs,1H), 7.90-7.92(m,1H), 7.54-7.58(m,1H), 7.14(t,J=8.8Hz,1H), 7.04(s,1H), 3.89(s,3H)
MS(ESI)m/z 348([C15H10ClFN3OB(OH)2+H]+), 362([C15H10ClFN3OB(OH)(OMe)+H]+)
4- (3-Chloro-4-fluorophenylamino) -7-methoxyquinazolin-6-ylboronic acid (9b).
1 H-NMR (400 MHz; CD 3 OD) δ: 8.39 (s, 1H), 8.18 (bs, 1H), 7.90-7.92 (m, 1H), 7.54-7.58 (m, 1H), 7.14 (t, J = 8.8Hz, 1H), 7.04 (s, 1H), 3.89 (s, 3H)
MS (ESI) m / z 348 ([C 15 H 10 ClFN 3 OB (OH) 2 + H] + ), 362 ([C 15 H 10 ClFN 3 OB (OH) (OMe) + H] + )

Figure 2009242240
Figure 2009242240

(合成例9)ホウ酸化合物1aの合成
4−クロロ6,7−ジメトキシキナゾリン(97mg,0.43mmol、Nakamura,H.et.al.Tetrahedron Letter.2006,47,2539の報告例により合成した)をイソプロピルアルコール(3mL)に溶かし、3−アミノフェニルホウ酸一水和物(74mg,0.48mmol)、濃塩酸(0.1mL)、を加えて室温で攪拌させた。6時間後、析出した固体をろ過してイソプロピルアルコールで洗った。得られた個体を真空ポンプで乾燥させ、アニリノキナゾリン1aの塩酸塩(150mg,0.41mmol,96%)を得た。1aの塩酸塩(55mg,0.15mmol)を炭酸水素ナトリウム水溶液中で攪拌し、固体をろ過して水で洗った。得られた固体を真空ポンプで乾燥させ1a(46mg,0.14mmol,95%)を得た。
(Synthesis Example 9) Synthesis of Boric Acid Compound 1a 4-Chloro-6,7-dimethoxyquinazoline (97 mg, 0.43 mmol, synthesized by report example of Nakamura, H. et. Al. Tetrahedron Letter. 2006, 47, 2539) Was dissolved in isopropyl alcohol (3 mL), 3-aminophenylboric acid monohydrate (74 mg, 0.48 mmol) and concentrated hydrochloric acid (0.1 mL) were added, and the mixture was stirred at room temperature. After 6 hours, the precipitated solid was filtered and washed with isopropyl alcohol. The obtained solid was dried with a vacuum pump to obtain hydrochloride of anilinoquinazoline 1a (150 mg, 0.41 mmol, 96%). 1a hydrochloride (55 mg, 0.15 mmol) was stirred in aqueous sodium bicarbonate and the solid was filtered and washed with water. The obtained solid was dried with a vacuum pump to obtain 1a (46 mg, 0.14 mmol, 95%).

3−(6,7−ジメトキシキナゾリン−4−イルアミノ)フェニルボロン酸(1a).
1H-NMR(400MHz;CD3OD)δ:8.28(s,1H), 7.83(s,1H), 7.66(m,2H), 7.39(br,1H), 7.31(t,J=3.6Hz), 7.05(s,1H), 3.93(s,3H), 3.90(s,3H)
MS(ESI)m/z 326([C16H14N3O2B(OH)2+H]+), 340([C16H14N3O2B(OH)(OMe)+H]+)
3- (6,7-dimethoxyquinazolin-4-ylamino) phenylboronic acid (1a).
1 H-NMR (400 MHz; CD 3 OD) δ: 8.28 (s, 1H), 7.83 (s, 1H), 7.66 (m, 2H), 7.39 (br, 1H), 7.31 (t, J = 3.6 Hz) , 7.05 (s, 1H), 3.93 (s, 3H), 3.90 (s, 3H)
MS (ESI) m / z 326 ([C 16 H 14 N 3 O 2 B (OH) 2 + H] + ), 340 ([C 16 H 14 N 3 O 2 B (OH) (OMe) + H] + )

Figure 2009242240
Figure 2009242240

(合成例10)ホウ酸エステル2の合成
4−クロロ6,7−ジメトキシキナゾリン(178mg,0.79mmol)をイソプロピルアルコール(12mL)に溶かし、4−(4,4,5,5−テトラメチル−1,3,2−ジオキサボロラン−2−イル)アニリン(173mg,0.79mmol)を加えて加熱還流した。24時間後、室温まで放置した後、ロータリーエバポレーターでイソプロピルアルコールを除き、固体をジクロロメタンで洗った。得られた固体を真空ポンプで乾燥させ、化合物2(256mg,0.50mmol,63%)を得た。
Synthesis Example 10 Synthesis of Boric Acid Ester 2 4-Chloro-6,7-dimethoxyquinazoline (178 mg, 0.79 mmol) was dissolved in isopropyl alcohol (12 mL), and 4- (4,4,5,5-tetramethyl- 1,3,2-Dioxaborolan-2-yl) aniline (173 mg, 0.79 mmol) was added and heated to reflux. After 24 hours, the mixture was allowed to stand at room temperature, after which isopropyl alcohol was removed with a rotary evaporator, and the solid was washed with dichloromethane. The obtained solid was dried with a vacuum pump to obtain Compound 2 (256 mg, 0.50 mmol, 63%).

(6,7−ジメトキシキナゾリン−4−イル)−[4−(4,4,5,5−テトラメチル−[1,3,2]ジオキサボロラン−2−イル)−フェニル]アミン(2).
1H-NMR(400MHz;CDCl3)δ:8.17(s,1H), 8.10(s,1H), 7.96(d,J=8.8Hz,2H), 7.82(d,J=8.4,2H), 7.18(s,1H), 4.23(s,3H), 3.79(s,3H), 1.35(s,12H)
(6,7-Dimethoxyquinazolin-4-yl)-[4- (4,4,5,5-tetramethyl- [1,3,2] dioxaborolan-2-yl) -phenyl] amine (2).
1 H-NMR (400 MHz; CDCl 3 ) δ: 8.17 (s, 1H), 8.10 (s, 1H), 7.96 (d, J = 8.8 Hz, 2H), 7.82 (d, J = 8.4, 2H), 7.18 (s, 1H), 4.23 (s, 3H), 3.79 (s, 3H), 1.35 (s, 12H)

(合成例11)ホウ酸化合物1b
化合物2(17mg,0.04mmol)をメタノール(1.5mL)に溶かし、フッ化水素カリウム(16mg,0.40mmol)水溶液(1.5mL)を加えた。30分間攪拌後、ロータリーエバポレーターでメタノールを除き、アセトニトリル、ヘキサンを加えて分液ろうとに移しヘキサン層を除去した。残ったアセトニトリル層に6N 塩酸を加えて酸性した後、ロータリーエバポレーターにかけて溶媒を除去した。析出した固体に飽和炭酸水素ナトリウム水溶液を加えてろ過し、固体を水で洗った。得られた固体を真空ポンプで乾燥させ1b(13mg,0.04mmol,quant)を得た。
Synthesis Example 11 Boric acid compound 1b
Compound 2 (17 mg, 0.04 mmol) was dissolved in methanol (1.5 mL), and an aqueous solution (1.5 mL) of potassium hydrogen fluoride (16 mg, 0.40 mmol) was added. After stirring for 30 minutes, methanol was removed with a rotary evaporator, acetonitrile and hexane were added, and the mixture was transferred to a separatory funnel and the hexane layer was removed. 6N Hydrochloric acid was added to the remaining acetonitrile layer for acidification, and then the solvent was removed using a rotary evaporator. Saturated aqueous sodium hydrogen carbonate solution was added to the precipitated solid and filtered, and the solid was washed with water. The obtained solid was dried with a vacuum pump to obtain 1b (13 mg, 0.04 mmol, quant).

4−(6,7−ジメトキシキナゾリン−4−イル−アミノ)フェニルボロン酸(1b).
1H-NMR(400MHz;CD3OD)δ:8.34(s,1H), 7.62-7.69(m,5H), 7.09(s,1H), 3.95(s,3H), 3.92(s,3H)
MS(ESI)m/z 326([C16H14N3O2B(OH)2+H]+), 340([C16H14N3O2B(OH)(OMe)+H]+)
4- (6,7-dimethoxyquinazolin-4-yl-amino) phenylboronic acid (1b).
1 H-NMR (400 MHz; CD 3 OD) δ: 8.34 (s, 1H), 7.62-7.69 (m, 5H), 7.09 (s, 1H), 3.95 (s, 3H), 3.92 (s, 3H)
MS (ESI) m / z 326 ([C 16 H 14 N 3 O 2 B (OH) 2 + H] + ), 340 ([C 16 H 14 N 3 O 2 B (OH) (OMe) + H] + )

Figure 2009242240
Figure 2009242240

(実施例5)ホウ酸化合物10a
4−クロロ6,7−ジメトキシキナゾリン(75mg,0.33mmol)をイソプロピルアルコール(5mL)に溶かし、3−ヒドロキシフェニルホウ酸(51mg,0.37mmol)、炭酸カリウム(91mg,0.66mmol)を加え加熱還流した。6時間後室温まで放置し、析出した固体をろ過し、水とイソプロピルアルコールで洗った。得られた固体を真空ポンプで乾燥させ10a(88mg,0.27mmol,82%)を得た。
3−(6,7−ジメトキシキナゾリン−4−イルオキシ)フェニルホウ酸(10a).
1H-NMR(400MHz;CD3OD)δ:8.39(s,1H), 7.57(s,1H), 7.41-7.63(m,3H), 7.21-7.24(m,2H), 3.97(s,3H), 3.95(s,3H)
MS(ESI)m/z 327([C16H13N2O3B(OH)2+H]+), 341([C16H13N2O3B(OH)(OMe)+H]+)
(Example 5) Boric acid compound 10a
4-Chloro-6,7-dimethoxyquinazoline (75 mg, 0.33 mmol) is dissolved in isopropyl alcohol (5 mL), and 3-hydroxyphenylboric acid (51 mg, 0.37 mmol) and potassium carbonate (91 mg, 0.66 mmol) are added. Heated to reflux. After 6 hours, the mixture was allowed to stand at room temperature, and the precipitated solid was filtered and washed with water and isopropyl alcohol. The obtained solid was dried with a vacuum pump to obtain 10a (88 mg, 0.27 mmol, 82%).
3- (6,7-dimethoxyquinazolin-4-yloxy) phenyl boric acid (10a).
1 H-NMR (400 MHz; CD 3 OD) δ: 8.39 (s, 1H), 7.57 (s, 1H), 7.41-7.63 (m, 3H), 7.21-7.24 (m, 2H), 3.97 (s, 3H ), 3.95 (s, 3H)
MS (ESI) m / z 327 ([C 16 H 13 N 2 O 3 B (OH) 2 + H] + ), 341 ([C 16 H 13 N 2 O 3 B (OH) (OMe) + H] + )

Figure 2009242240
Figure 2009242240

(実施例6)ホウ酸化合物3aの合成
アニリノキナゾリン1aの合成と同様の操作で4−クロロ6,7−ジメトキシエトキシキナゾリン(Nakamura,H.et.al.Tetrahedron Letter.2006,47,2539の報告例により合成した。111mg,0.35mmol)、3−アミノフェニルホウ酸一水和物(61mg,0.39mmol)、イソプロピルアルコール(3mL)、濃塩酸(0.1mL)を用いてアニリノキナゾリン3aの塩酸塩(141mg,90%)を得た。3aの塩酸塩(51mg,0.11mmol)を用いて塩酸を除去したアニリノキナゾリン3a(49mg,0.11mmol)を定量的に得た。
(Example 6) Synthesis of boric acid compound 3a 4-chloro-6,7-dimethoxyethoxyquinazoline (Nakamura, H. et. Al. Tetrahedron Letter. 2006, 47, 2539) was prepared in the same manner as the synthesis of anilinoquinazoline 1a. Anilinoquinazoline was synthesized using 111 mg, 0.35 mmol), 3-aminophenylboric acid monohydrate (61 mg, 0.39 mmol), isopropyl alcohol (3 mL), concentrated hydrochloric acid (0.1 mL). 3a hydrochloride (141 mg, 90%) was obtained. Anilinoquinazoline 3a (49 mg, 0.11 mmol) from which hydrochloric acid was removed using 3a hydrochloride (51 mg, 0.11 mmol) was quantitatively obtained.

3−(6,7−ビス(2−メトキシエトキシ)キナゾリン−4−イル−アミノ)フェニルボロン酸(3a).
1H-NMR(400MHz;CD3OD)δ:8.27(s,1H), 7.83(s,1H), 7.66-7.69(m,2H), 7.39(m,1H), 7.31(t,J=7.6Hz,1H), 7.08(s,1H), 4.21-4.25(m,4H), 3.75-3.79(m,4H), 3.39(s,3H), 3.38(s,3H)
MS(ESI)m/z 428([C20H23N3O4B(OH)(OMe)+H]+), 450([C20H23N3O4B(OH)(OMe)+Na]+)
3- (6,7-bis (2-methoxyethoxy) quinazolin-4-yl-amino) phenylboronic acid (3a).
1 H-NMR (400 MHz; CD 3 OD) δ: 8.27 (s, 1H), 7.83 (s, 1H), 7.66-7.69 (m, 2H), 7.39 (m, 1H), 7.31 (t, J = 7.6 Hz, 1H), 7.08 (s, 1H), 4.21-4.25 (m, 4H), 3.75-3.79 (m, 4H), 3.39 (s, 3H), 3.38 (s, 3H)
MS (ESI) m / z 428 ([C 20 H 23 N 3 O 4 B (OH) (OMe) + H] + ), 450 ([C 20 H 23 N 3 O 4 B (OH) (OMe) + Na] + )

(実施例7)ホウ酸化合物3bの合成
4−クロロ−6,7−ビス−(2−メトキシエトキシ)キナゾリン(42mg,0.14mmol)をイソプロピルアルコール(5mL)に溶かし、4−(4,4,5,5−テトラメチル−1,3,2−ジオキサボロラン−2−イル)アニリン(33mg,0.15mmol)、濃塩酸(0.05mL)を加えて室温で攪拌させた。6時間後、析出した固体をろ過しイソプロピルアルコールで洗った。得られた固体を1bの合成と同様の操作でアニリノキナゾリン3b(11mg,0.03mmol,2steps19%)を得た。
(Example 7) Synthesis of boric acid compound 3b 4-Chloro-6,7-bis- (2-methoxyethoxy) quinazoline (42 mg, 0.14 mmol) was dissolved in isopropyl alcohol (5 mL), and 4- (4,4 , 5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) aniline (33 mg, 0.15 mmol) and concentrated hydrochloric acid (0.05 mL) were added and stirred at room temperature. After 6 hours, the precipitated solid was filtered and washed with isopropyl alcohol. Anilinoquinazoline 3b (11 mg, 0.03 mmol, 2 steps 19%) was obtained from the obtained solid in the same manner as in the synthesis of 1b.

4−(6,7−ビス(2−メトキシエトキシ)キナゾリン−4−イル−アミノ)フェニルボロン酸(3b).
1H-NMR(400MHz;CD3OD)δ:8.29(s,1H), 7.67(s,1H), 7.63(m,4H), 7.06(s,1H), 4.18-4.24(m,4H), 3.74-3.77(m,4H), 3.38(s,3H), 3.37(s,3H)
MS(ESI)m/z 414([C20H23N3O4B(OH)2 +H]+), 428([C20H23N3O4B(OH)(OMe)+H]+), 450([C20H23N3O4B(OH)(OMe)+Na]+).
4- (6,7-bis (2-methoxyethoxy) quinazolin-4-yl-amino) phenylboronic acid (3b).
1 H-NMR (400 MHz; CD 3 OD) δ: 8.29 (s, 1H), 7.67 (s, 1H), 7.63 (m, 4H), 7.06 (s, 1H), 4.18-4.24 (m, 4H), 3.74-3.77 (m, 4H), 3.38 (s, 3H), 3.37 (s, 3H)
MS (ESI) m / z 414 ([C 20 H 23 N 3 O 4 B (OH) 2 + H] + ), 428 ([C 20 H 23 N 3 O 4 B (OH) (OMe) + H] + ), 450 ([C 20 H 23 N 3 O 4 B (OH) (OMe) + Na] + ).

(試験例1)
チロシンキナーゼのキナーゼ活性は、ELISAで測定した(Cancer Res.,63,4450−4459,2003)。EIA/RIA stripwellTM プレート(Corning社製)に、50μg/mLのpoly(Glu:Tyr,4:1)ペプチド(Sigma社製)PBS溶液を100μl/wellとなるように撒き、4℃で一昼夜インキュベーションしてコートした。100μMのATP、10ngの組換えEGFR、HER2、Flt−1もしくはKDR(Invitrogen社製,いずれも触媒ドメイン)および合成した各種含ホウ素キナゾリン誘導体を含むキナーゼ緩衝液(50mM HEPES、125mM NaClおよび10mM MgCl2,pH7.4)50μlをプレートに加え、キナーゼ反応を行った。20分後、プレートを洗浄緩衝液(Tween20の0.1% PBS溶液)で3回洗浄し、0.2μg/mLのHRP標識リン酸化チロシン抗体(Santa Cruz社製)を50μl/wellとなるようにプレートに添加し、20分間インキュベートした。2回洗浄した後、テトラメチルベンジジン(Sigma社製)を50μl/wellとなるようにプレートに加えて反応させ、50μl/wellの2N H2SO4を加えて反応を停止させた。96−well plate reader(Tecan社製)を用いて、450nmの吸光度を測定し、被験化合物の50%阻害濃度(IC50)を求めた。
(Test Example 1)
The kinase activity of tyrosine kinase was measured by ELISA (Cancer Res., 63, 4450-4459, 2003). A 50 μg / mL poly (Glu: Tyr, 4: 1) peptide (manufactured by Sigma) PBS solution is plated at 100 μl / well on an EIA / RIA stripwell plate (manufactured by Corning) and incubated at 4 ° C. overnight. And coated. Kinase buffer (50 mM HEPES, 125 mM NaCl and 10 mM MgCl 2 ) containing 100 μM ATP, 10 ng of recombinant EGFR, HER2, Flt-1 or KDR (Invitrogen, all catalytic domain) and various boron-containing quinazoline derivatives synthesized , PH 7.4) 50 μl was added to the plate and the kinase reaction was performed. After 20 minutes, the plate was washed 3 times with a washing buffer (0.1% PBS solution of Tween 20), and 0.2 μg / mL of HRP-labeled phosphotyrosine antibody (manufactured by Santa Cruz) was adjusted to 50 μl / well. Was added to the plate and incubated for 20 minutes. After washing twice, tetramethylbenzidine (manufactured by Sigma) was added to the plate to react at 50 μl / well, and the reaction was stopped by adding 50 μl / well of 2N H 2 SO 4 . Using a 96-well plate reader (manufactured by Tecan), the absorbance at 450 nm was measured to determine the 50% inhibitory concentration (IC 50 ) of the test compound.

結果を、下記表1に示す。なおカッコ書きの数値は、被験化合物を1μMの濃度で添加した際のキナーゼ活性の阻害割合を示す。また表中の「−」は、被験化合物を1μMの濃度で添加しても阻害効果がみられなかったことを示す。   The results are shown in Table 1 below. The numerical values in parentheses indicate the inhibition rate of the kinase activity when the test compound is added at a concentration of 1 μM. Further, “-” in the table indicates that no inhibitory effect was observed even when the test compound was added at a concentration of 1 μM.

Figure 2009242240
Figure 2009242240

上記の結果から明らかなように、キナゾリン骨格のベンゼン環上にホウ素官能基を有する本発明化合物はEGFRに対する特異的阻害作用を有し、キナゾリン骨格4位の端部のベンゼン環上にホウ素官能基を有する化合物は、VEGFR2(KDR)に対する特異的阻害作用を有していた。   As is clear from the above results, the compound of the present invention having a boron functional group on the benzene ring of the quinazoline skeleton has a specific inhibitory action on EGFR, and the boron functional group on the benzene ring at the end of the 4-position of the quinazoline skeleton. The compound having had a specific inhibitory action on VEGFR2 (KDR).

Claims (12)

下記式(1)で表される含ホウ素キナゾリン誘導体または薬学的に許容されるその塩。
Figure 2009242240
[式中、R1およびR2はそれぞれ独立して水素原子、アルコキシ基、−O−(CH2n−OCH3(nは1〜10の整数を示す)、
Figure 2009242240
(mは1〜10の整数を示す)

Figure 2009242240
(pは1〜10の整数を示す)
または−X−B−(OR6)(OR7)(式中、Xは単結合、−OCH2−、−OCH2CH=CH−または
Figure 2009242240
を示し、R6およびR7は水素原子を示すか、またはOR6とOR7とが互いに連結して隣接するホウ素原子とともに置換基を有していてもよいホウ素含有複素環基を形成する)を示し;
3およびR4はそれぞれ独立して水素原子、アルキル基、ハロアルキル基、アルコキシ基またはハロゲン原子を示し;
5は水素原子または−B(OR8)(OR9)(式中、R8およびR9はそれぞれ独立して水素原子またはアルキル基を示すか、またはOR8とOR9とが互いに連結して隣接するホウ素原子とともに置換基を有していてもよいホウ素含有複素環基を形成する。)を示し;
Dは−O−または−NH−を示す。
ただし、R5が水素原子を示すとき、R1またはR2はアルコキシ基、−O−(CH2n−OCH3(nは前記定義に同じ)、
Figure 2009242240
(mは前記定義に同じ)

Figure 2009242240
(pは前記定義に同じ)
または−B−(OR6)(OR7)(式中、R6およびR7は前記定義に同じ)を示す。またR5が−B(OH)2を示し、かつDが−NH−を示すとき、R1およびR2はともにメトキシ基を示さないものとする。
なお、R5が水素原子を示すとき、R1およびR2の少なくともいずれか一方は−B(OR6)(OR7)を示すものとし、またR5が−B(OR8)(OR9)を示すとき、連結基Dに対してメタ位またはパラ位に結合するものとする。]
A boron-containing quinazoline derivative represented by the following formula (1) or a pharmaceutically acceptable salt thereof.
Figure 2009242240
[Wherein, R 1 and R 2 are each independently a hydrogen atom, an alkoxy group, —O— (CH 2 ) n —OCH 3 (n represents an integer of 1 to 10),
Figure 2009242240
(M represents an integer of 1 to 10)
,
Figure 2009242240
(P represents an integer of 1 to 10)
Or -X-B- (OR 6) ( OR 7) ( wherein, X represents a single bond, -OCH 2 -, - OCH 2 CH = CH- or
Figure 2009242240
And R 6 and R 7 represent a hydrogen atom, or OR 6 and OR 7 are linked to each other to form a boron-containing heterocyclic group which may have a substituent together with the adjacent boron atom) Indicates;
R 3 and R 4 each independently represent a hydrogen atom, an alkyl group, a haloalkyl group, an alkoxy group or a halogen atom;
R 5 is a hydrogen atom or —B (OR 8 ) (OR 9 ) (wherein R 8 and R 9 each independently represent a hydrogen atom or an alkyl group, or OR 8 and OR 9 are linked to each other). Forming a boron-containing heterocyclic group which may have a substituent together with an adjacent boron atom);
D represents —O— or —NH—.
However, when R 5 represents a hydrogen atom, R 1 or R 2 is an alkoxy group, -O- (CH 2) n -OCH 3 (n is as defined above),
Figure 2009242240
(M is as defined above)
,
Figure 2009242240
(P is as defined above)
Or -B- (OR 6 ) (OR 7 ) (wherein R 6 and R 7 are the same as defined above). When R 5 represents —B (OH) 2 and D represents —NH—, neither R 1 nor R 2 represents a methoxy group.
When R 5 represents a hydrogen atom, at least one of R 1 and R 2 represents —B (OR 6 ) (OR 7 ), and R 5 represents —B (OR 8 ) (OR 9 ). ), It shall be bonded to the linking group D at the meta position or the para position. ]
1およびR2が水素原子、アルコキシ基、−O−(CH2n−OCH3(nは前記定義に同じ)、
Figure 2009242240
(mは前記定義に同じ)
または
Figure 2009242240
(pは前記定義に同じ)
を示し、R5が−B(OR8)(OR9)を示すことを特徴とする請求項1記載の化合物。
R 1 and R 2 are a hydrogen atom, an alkoxy group, —O— (CH 2 ) n —OCH 3 (n is as defined above),
Figure 2009242240
(M is as defined above)
Or
Figure 2009242240
(P is as defined above)
The compound according to claim 1, wherein R 5 represents -B (OR 8 ) (OR 9 ).
5がパラ位に結合していることを特徴とする請求項2記載の化合物。 The compound according to claim 2, wherein R 5 is bonded to the para position. 1およびR2がともに炭素数1〜5のアルコキシ基または−O−(CH2n'−OCH3(n’は1〜4の整数を示す。)を示すことを特徴とする請求項3記載の化合物。 R 1 and R 2 both represent an alkoxy group having 1 to 5 carbon atoms or —O— (CH 2 ) n ′ —OCH 3 (n ′ represents an integer of 1 to 4). 3. The compound according to 3. 5が−B(OH)2を示すことを特徴とする請求項4記載の化合物。 The compound according to claim 4, wherein R 5 represents -B (OH) 2 . 1およびR2の少なくともいずれか一方が−B−(OR6)(OR7)(式中、R6およびR7は前記定義に同じ)を示し、R3およびR4の少なくともいずれか一方がハロゲン原子を示すことを特徴とする請求項1記載の化合物。 At least one of R 1 and R 2 represents —B— (OR 6 ) (OR 7 ) (wherein R 6 and R 7 are the same as defined above), and at least one of R 3 and R 4 The compound according to claim 1, wherein represents a halogen atom. 1が−B−(OR6)(OR7)(式中、R6およびR7は前記定義に同じ)を示し、R2がアルコキシ基、−O−(CH2n−OCH3(nは前記定義に同じ)、
Figure 2009242240
(mは前記定義に同じ)
または
Figure 2009242240
(pは前記定義に同じ)
を示すことを特徴とする請求項6記載の化合物。
R 1 represents —B— (OR 6 ) (OR 7 ) (wherein R 6 and R 7 are the same as defined above), R 2 represents an alkoxy group, —O— (CH 2 ) n —OCH 3 ( n is the same as defined above)
Figure 2009242240
(M is as defined above)
Or
Figure 2009242240
(P is as defined above)
The compound according to claim 6, wherein
2が炭素数1〜5のアルコキシ基を示すことを特徴とする請求項7記載の化合物。 The compound according to claim 7, wherein R 2 represents an alkoxy group having 1 to 5 carbon atoms. Dが−NH−を示すことを特徴とする請求項1〜8のいずれか1項記載の化合物。   The compound according to any one of claims 1 to 8, wherein D represents -NH-. 4−(6,7−ビス(2−メトキシエトキシ)キナゾリン−4−イル−アミノ)フェニルホウ酸または薬学的に許容されるその塩。   4- (6,7-bis (2-methoxyethoxy) quinazolin-4-yl-amino) phenyl boric acid or a pharmaceutically acceptable salt thereof. 下記式(1)で表される含ホウ素キナゾリン誘導体または薬学的に許容されるその塩、および薬学的に許容される担体を含有してなる医薬組成物。
Figure 2009242240
[式中、R1およびR2はそれぞれ独立して水素原子、アルコキシ基、−O−(CH2n−OCH3(nは1〜10の整数を示す)、
Figure 2009242240
(mは1〜10の整数を示す)

Figure 2009242240
(pは1〜10の整数を示す)
または−X−B−(OR6)(OR7)(式中、Xは単結合、−OCH2−、−OCH2CH=CH−または
Figure 2009242240
を示し、R6およびR7は水素原子を示すか、またはOR6とOR7とが互いに連結して隣接するホウ素原子とともに置換基を有していてもよいホウ素含有複素環基を形成する)を示し、
3およびR4はそれぞれ独立して水素原子、アルキル基、ハロアルキル基、アルコキシ基またはハロゲン原子を示し、
5は水素原子または−B(OR8)(OR9)(式中、R8およびR9はそれぞれ独立して水素原子またはアルキル基を示すか、またはOR8とOR9とが互いに連結して隣接するホウ素原子とともに置換基を有していてもよいホウ素含有複素環基を形成する。)を示し、
Dは−O−または−NH−を示す。
ただし、R5が水素原子を示すとき、R1またはR2は−X’−B−(OR6)(OR7)(式中、X’は−OCH2−、−OCH2CH=CH−または
Figure 2009242240
を示し、R6およびR7は前記定義に同じ)を示さないものとする。
なお、R5が水素原子を示すとき、R1およびR2の少なくともいずれか一方は−B(OR6)(OR7)を示すものとし、またR5が−B(OR8)(OR9)を示すとき、連結基Dに対してメタ位またはパラ位に結合するものとする。]
A pharmaceutical composition comprising a boron-containing quinazoline derivative represented by the following formula (1) or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier.
Figure 2009242240
[Wherein, R 1 and R 2 are each independently a hydrogen atom, an alkoxy group, —O— (CH 2 ) n —OCH 3 (n represents an integer of 1 to 10),
Figure 2009242240
(M represents an integer of 1 to 10)
,
Figure 2009242240
(P represents an integer of 1 to 10)
Or -X-B- (OR 6) ( OR 7) ( wherein, X represents a single bond, -OCH 2 -, - OCH 2 CH = CH- or
Figure 2009242240
And R 6 and R 7 represent a hydrogen atom, or OR 6 and OR 7 are linked to each other to form a boron-containing heterocyclic group which may have a substituent together with the adjacent boron atom) Indicate
R 3 and R 4 each independently represent a hydrogen atom, an alkyl group, a haloalkyl group, an alkoxy group or a halogen atom,
R 5 is a hydrogen atom or —B (OR 8 ) (OR 9 ) (wherein R 8 and R 9 each independently represent a hydrogen atom or an alkyl group, or OR 8 and OR 9 are linked to each other). A boron-containing heterocyclic group which may have a substituent together with an adjacent boron atom))
D represents —O— or —NH—.
However, when R 5 represents a hydrogen atom, R 1 or R 2 -X'-B- (OR 6) ( OR 7) ( wherein, X 'is -OCH 2 -, - OCH 2 CH = CH- Or
Figure 2009242240
And R 6 and R 7 are the same as defined above.
When R 5 represents a hydrogen atom, at least one of R 1 and R 2 represents —B (OR 6 ) (OR 7 ), and R 5 represents —B (OR 8 ) (OR 9 ). ), It shall be bonded to the linking group D at the meta position or the para position. ]
下記式(1)で表される含ホウ素キナゾリン誘導体または薬学的に許容されるその塩を有効成分とする抗腫瘍剤。
Figure 2009242240
[式中、R1およびR2はそれぞれ独立して水素原子、アルコキシ基、−O−(CH2n−OCH3(nは1〜10の整数を示す)、
Figure 2009242240
(mは1〜10の整数を示す)

Figure 2009242240
(pは1〜10の整数を示す)
または−X−B−(OR6)(OR7)(式中、Xは単結合、−OCH2−、−OCH2CH=CH−または
Figure 2009242240
を示し、R6およびR7は水素原子を示すか、またはOR6とOR7とが互いに連結して隣接するホウ素原子とともに置換基を有していてもよいホウ素含有複素環基を形成する)を示し、
3およびR4はそれぞれ独立して水素原子、アルキル基、ハロアルキル基、アルコキシ基またはハロゲン原子を示し、
5は水素原子または−B(OR8)(OR9)(式中、R8およびR9はそれぞれ独立して水素原子またはアルキル基を示すか、またはOR8とOR9とが互いに連結して隣接するホウ素原子とともに置換基を有していてもよいホウ素含有複素環基を形成する。)を示し、
Dは−O−または−NH−を示す。
ただし、R5が水素原子を示すとき、R1またはR2は−X’−B−(OR6)(OR7)(式中、X’は−OCH2−、−OCH2CH=CH−または
Figure 2009242240
を示し、R6およびR7は前記定義に同じ)を示さないものとする。
なお、R5が水素原子を示すとき、R1およびR2の少なくともいずれか一方は−B(OR6)(OR7)を示すものとし、またR5が−B(OR8)(OR9)を示すとき、連結基Dに対してメタ位またはパラ位に結合するものとする。]
An antitumor agent comprising a boron-containing quinazoline derivative represented by the following formula (1) or a pharmaceutically acceptable salt thereof as an active ingredient.
Figure 2009242240
[Wherein, R 1 and R 2 are each independently a hydrogen atom, an alkoxy group, —O— (CH 2 ) n —OCH 3 (n represents an integer of 1 to 10),
Figure 2009242240
(M represents an integer of 1 to 10)
,
Figure 2009242240
(P represents an integer of 1 to 10)
Or -X-B- (OR 6) ( OR 7) ( wherein, X represents a single bond, -OCH 2 -, - OCH 2 CH = CH- or
Figure 2009242240
And R 6 and R 7 represent a hydrogen atom, or OR 6 and OR 7 are linked to each other to form a boron-containing heterocyclic group which may have a substituent together with the adjacent boron atom) Indicate
R 3 and R 4 each independently represent a hydrogen atom, an alkyl group, a haloalkyl group, an alkoxy group or a halogen atom,
R 5 is a hydrogen atom or —B (OR 8 ) (OR 9 ) (wherein R 8 and R 9 each independently represent a hydrogen atom or an alkyl group, or OR 8 and OR 9 are linked to each other). A boron-containing heterocyclic group which may have a substituent together with an adjacent boron atom))
D represents —O— or —NH—.
However, when R 5 represents a hydrogen atom, R 1 or R 2 -X'-B- (OR 6) ( OR 7) ( wherein, X 'is -OCH 2 -, - OCH 2 CH = CH- Or
Figure 2009242240
And R 6 and R 7 are the same as defined above.
When R 5 represents a hydrogen atom, at least one of R 1 and R 2 represents —B (OR 6 ) (OR 7 ), and R 5 represents —B (OR 8 ) (OR 9 ). ), It shall be bonded to the linking group D at the meta position or the para position. ]
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JP2022523105A (en) * 2019-02-01 2022-04-21 ザ ボード オブ トラスティーズ オブ ザ レランド スタンフォード ジュニア ユニバーシティー ENPP1 Inhibitors and Methods to Modulate Immune Responses

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