JPH07119205B2 - Phenylthioalkylcarboxylic acid derivative - Google Patents

Phenylthioalkylcarboxylic acid derivative

Info

Publication number
JPH07119205B2
JPH07119205B2 JP21188890A JP21188890A JPH07119205B2 JP H07119205 B2 JPH07119205 B2 JP H07119205B2 JP 21188890 A JP21188890 A JP 21188890A JP 21188890 A JP21188890 A JP 21188890A JP H07119205 B2 JPH07119205 B2 JP H07119205B2
Authority
JP
Japan
Prior art keywords
acid
reduced pressure
under reduced
dipentylcarbamoyl
dichlorophenylthiomethyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP21188890A
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Japanese (ja)
Other versions
JPH0495059A (en
Inventor
牧雄 北澤
増夫 赤羽
泰志 中野
敦 椿
和明 佐藤
正昭 阪
通洋 小林
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Kissei Pharmaceutical Co Ltd
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Kissei Pharmaceutical Co Ltd
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Priority to JP21188890A priority Critical patent/JPH07119205B2/en
Publication of JPH0495059A publication Critical patent/JPH0495059A/en
Publication of JPH07119205B2 publication Critical patent/JPH07119205B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 産業上の利用分野 本発明は医薬品の製造中間体として有用な、一般式 (式中のR1は炭素数1〜10のアルキル基または炭素数3
〜7のアルコキシアルキル基であり、R2は炭素数1〜10
のアルキル基であり、R3は水素原子または炭素数1〜4
のアルキル基であり、Xはハロゲン原子であり、mは
1、2または3であり、nは1または2である)で表さ
れるフェニルチオアルキルカルボン酸誘導体に関するも
のである。
TECHNICAL FIELD The present invention relates to a general formula useful as an intermediate for the manufacture of pharmaceuticals. (R 1 in the formula is an alkyl group having 1 to 10 carbon atoms or 3 carbon atoms
~ 7 alkoxyalkyl group, R 2 has 1 to 10 carbon atoms.
Is an alkyl group of R 3 , and R 3 is a hydrogen atom or has 1 to 4 carbon atoms.
Is an alkyl group, X is a halogen atom, m is 1, 2 or 3, and n is 1 or 2).

さらに詳しく述べれば、本発明は、コレシストキニン
(cholecystokinin、以下CCKという)受容体拮抗作用を
示し、過敏性大腸炎、胆道ジスキネジー、急性膵炎など
の疾患の予防および治療剤として有用な、一般式 (式中のYはスルホニル基またはスルフィニル基であ
り、R1、R2、R3、X、mおよびnは前記と同じ意味をも
つ)で表されるフェニルスルホニルアルキルカルボン酸
誘導体およびフェニルスルフィニルアルキルカルボン酸
誘導体の製造中間体として有用な一般式(I)で表され
るフェニルチオアルキルカルボン酸誘導体に関するもの
である。
More specifically, the present invention shows a cholecystokinin (hereinafter referred to as CCK) receptor antagonistic action, and is useful as a prophylactic and therapeutic agent for diseases such as irritable colitis, biliary dyskinesia, and acute pancreatitis. (Y in the formula is a sulfonyl group or a sulfinyl group, and R 1 , R 2 , R 3 , X, m and n have the same meanings as described above) and a phenylsulfonylalkylcarboxylic acid derivative and phenylsulfinylalkyl The present invention relates to a phenylthioalkylcarboxylic acid derivative represented by the general formula (I), which is useful as an intermediate for producing a carboxylic acid derivative.

従来の技術 CCKはガストリン(gastrin)、セクレチン(secretin)
と並ぶ代表的な消化管ホルモンで、特に膵外分泌刺激、
胆嚢収縮等に関与するホルモンであることが知られてい
る。
Conventional technology CCK is gastrin, secretin
It is a typical gastrointestinal hormone along with, especially pancreatic exocrine stimulation,
It is known to be a hormone involved in gallbladder contraction and the like.

近年、CCKに関する研究が進められ、各種疾患におけるC
CKの関与について解明されてきた。
In recent years, research on CCK has been advanced, and C
The involvement of CK has been elucidated.

その結果、特異的、競合的かつ可逆的なCCK受容体拮抗
剤が過敏性大腸炎、胆道ジスキネジー、急性膵炎などの
疾患の予防および治療剤として期待されるようになり、
注目を集めている。
As a result, specific, competitive and reversible CCK receptor antagonists have come to be expected as preventive and therapeutic agents for diseases such as irritable colitis, biliary dyskinesia, and acute pancreatitis,
It is getting attention.

発明が解決しようとする課題 本発明の目的は、CCK受容体拮抗作用を有し、過敏性大
腸炎、胆道ジスキネジー、急性膵炎などの疾患の予防お
よび治療剤として有用な前記一般式(II)で表されるフ
ェニルスルホニルアルキルカルボン酸誘導体およびフェ
ニルスルフィニルアルキルカルボン酸誘導体の製造中間
体として有用な前記一般式(I)で表されるフェニルチ
オアルキルカルボン酸誘導体を提供することである。
The object of the present invention is to have a CCK receptor antagonistic action, in the general formula (II) useful as a prophylactic and therapeutic agent for diseases such as irritable colitis, biliary dyskinesia, acute pancreatitis and the like. It is an object of the present invention to provide a phenylthioalkylcarboxylic acid derivative represented by the general formula (I), which is useful as an intermediate for the production of the phenylsulfonylalkylcarboxylic acid derivative and the phenylsulfinylalkylcarboxylic acid derivative.

課題を解決するための手段 前記一般式(II)で表されるフェニルスルホニルアルキ
ルカルボン酸誘導体およびフェニルスルフィニルアルキ
ルカルボン酸誘導体は強力なCCK受容体拮抗作用を有
し、過敏性大腸炎、胆道ジスキネジー、急性膵炎などの
疾患の予防および治療剤として有用である。
Means for Solving the Problems The phenylsulfonylalkylcarboxylic acid derivative and the phenylsulfinylalkylcarboxylic acid derivative represented by the general formula (II) have a strong CCK receptor antagonistic action, irritable colitis, biliary dyskinesia, It is useful as a prophylactic and therapeutic agent for diseases such as acute pancreatitis.

本発明の前記一般式(I)で表されるフェニルチオアル
キルカルボン酸誘導体は、これを適当な酸化剤で酸化
し、必要に応じ加水分解することにより、きわめて容易
に収率よく前記一般式(II)の化合物に導くことができ
る。
The phenylthioalkylcarboxylic acid derivative represented by the general formula (I) of the present invention can be very easily produced in good yield by oxidizing the compound with a suitable oxidizing agent and hydrolyzing it if necessary. It can lead to the compound of II).

本発明の一般式(I)で表されるフェニルチオアルキル
カルボン酸誘導体は新規な化合物であり、以下のように
して製造することができる。
The phenylthioalkylcarboxylic acid derivative represented by the general formula (I) of the present invention is a novel compound and can be produced as follows.

すなわち、一般式 (式中のR4は炭素数1〜4のアルキル基であり、X、m
およびnは前記と同じ意味をもつ)で表されるフェニル
チオアルキルカルボン酸誘導体またはその反応性官能的
誘導体と、一般式 (式中のR1およびR2は前記と同じ意味をもつ)で表され
るアミン類とを反応させ、必要に応じて加水分解するこ
とにより製造することができる。
That is, the general formula (In the formula, R 4 is an alkyl group having 1 to 4 carbon atoms, and X, m
And n have the same meanings as described above) and a phenylthioalkylcarboxylic acid derivative represented by It can be produced by reacting with an amine represented by the formula (R 1 and R 2 in the formula have the same meanings as described above) and, if necessary, hydrolyzing them.

本発明の一般式(I)の化合物の製造方法において出発
原料として用いられる前記一般式(III)の化合物は新
規化合物であり、以下のようにして製造することができ
る。
The compound of the general formula (III) used as a starting material in the method for producing the compound of the general formula (I) of the present invention is a novel compound and can be produced as follows.

すなわち、一般式 (式中のXおよびnは前記と同じ意味をもつ)で表され
るチオフェノール誘導体と、一般式 (式中のAおよびBはそれぞれシアノ基または炭素数2
〜5のアルコキシカルボニル基であるかあるいはAが炭
素数2〜5のアルコキシカルボニル基でBがカルボキシ
基またはそのアルカリ金属塩であり、mは前記と同じ意
味をもつ)で表される化合物とをルイス塩基またはルイ
ス酸触媒の存在下に反応して、一般式 (式中のA、B、X、mおよびnは前記と同じ意味をも
つ)で表される化合物を製し、必要に応じこれを適当な
方法により加水分解、モノエステル化を行うことにより
得ることができる。
That is, the general formula (Wherein X and n have the same meanings as described above), a thiophenol derivative represented by the general formula (A and B in the formula are each a cyano group or a carbon number of 2
To an alkoxycarbonyl group of 5 or A is an alkoxycarbonyl group of 2 to 5 carbon atoms and B is a carboxy group or an alkali metal salt thereof, and m has the same meaning as described above). By reacting in the presence of a Lewis base or a Lewis acid catalyst, the general formula (A, B, X, m and n in the formula have the same meanings as described above), and the compound is hydrolyzed and monoesterified by an appropriate method if necessary. be able to.

本発明の一般式(I)で表されるフェニルチオアルキル
カルボン酸誘導体は不斉炭素を有しており、2種の光学
異性体が存在するが、本発明においてはR体、S体また
はその混合物のいずれも含まれる。
The phenylthioalkylcarboxylic acid derivative represented by the general formula (I) of the present invention has an asymmetric carbon and has two kinds of optical isomers. Any mixture is included.

発明の効果 本発明の一般式(I)で表されるフェニルチオアルキル
カルボン酸誘導体は、適当な酸化剤、例えば、m−クロ
ロ過安息香酸を用いて酸化し、必要に応じて加水分解す
ることにより極めて容易に、収率よく一般式(II)で表
されるフェニルスルホニルアルキルカルボン酸誘導体お
よびフェニルスルフィニルアルキルカルボン酸誘導体に
導くことができる。
EFFECTS OF THE INVENTION The phenylthioalkylcarboxylic acid derivative represented by the general formula (I) of the present invention should be oxidized with a suitable oxidizing agent, for example, m-chloroperbenzoic acid, and hydrolyzed as necessary. With this, it is possible to very easily lead to a phenylsulfonylalkylcarboxylic acid derivative and a phenylsulfinylalkylcarboxylic acid derivative represented by the general formula (II) with high yield.

このようにして、本発明の一般式(I)の化合物から製
造される一般式(II)で表される化合物はCCK受容体拮
抗作用を有し、過敏性大腸炎、胆道ジスキネジー、急性
膵炎などの疾患治療剤として有用である。
As described above, the compound represented by the general formula (II) produced from the compound of the general formula (I) of the present invention has a CCK receptor antagonistic action, and is susceptible to irritable colitis, biliary dyskinesia, acute pancreatitis, etc. It is useful as a therapeutic agent for the disease.

例えば、5−(3,4−ジクロロフェニルスルホニル)−
4−(N,N−ジペンチルカルバモイル)ペンタン酸およ
び5−(3,4−ジクロロフェニルスルフィニル)−4−
(N,N−ジペンチルカルバモイル)ペンタン酸は、125I
でラベルしたCCK−8を用いたラット摘出膵臓のCCK受容
体に対するバインディングアッセイにおいて、それぞれ
2.0×10-7モル濃度および4.9×10-8モル濃度で50%結合
抑制(IC50)を示し、CCK−8を用いたモルモット摘出
胆嚢での胆嚢収縮抑制試験において、それぞれ1.1×10
-5モル濃度および6.2×10-7モル濃度で50%抑制(I
C50)を示す。
For example, 5- (3,4-dichlorophenylsulfonyl)-
4- (N, N-dipentylcarbamoyl) pentanoic acid and 5- (3,4-dichlorophenylsulfinyl) -4-
(N, N-dipentylcarbamoyl) pentanoic acid is 125 I
In a binding assay for CCK receptor of rat isolated pancreas using CCK-8 labeled with
It showed a 50% binding inhibition (IC 50 ) at 2.0 × 10 -7 molar concentration and 4.9 × 10 -8 molar concentration, and 1.1 × 10 in the gallbladder contraction inhibition test using guinea pig isolated gallbladder using CCK-8.
50% inhibition at -5 and 6.2 x 10 -7 molar (I
C50 ) is shown.

また、ラットでのアミラーゼ分泌抑制試験においては、
それぞれ2.2mg/kgおよび4.6mg/kgの十二指腸内投与で50
%抑制効果(ED50)を示す。
In addition, in the amylase secretion inhibition test in rats,
50 by intraduodenal administration of 2.2 mg / kg and 4.6 mg / kg respectively
% Inhibition effect (ED 50 ) is shown.

実施例 本発明の内容を以下の参考例および実施例でさらに詳細
に説明する。なお、各参考例および実施例中の化合物の
融点はすべて未補正である。
EXAMPLES The contents of the present invention will be described in more detail with reference to the following reference examples and examples. The melting points of the compounds in Reference Examples and Examples are all uncorrected.

参考例1 2−(3,4−ジクロロフェニルチオメチル)−4−メト
キシカルボニル酪酸 3,4−ジクロロベンゼンチオール3.00mlと2−メチレン
グルタロニトリル2.57mlをエタノール25mlに溶かし、ト
リトンB(40%メタノール溶液)10滴を加えたのち4時
間加熱還流させた。反応液を減圧下に濃縮後、クロロホ
ルムで抽出し水洗したのち無水硫酸マグネシウムで乾燥
した。減圧下に溶媒を留去後、残留物をジエチルエーテ
ル−ヘキサンより再結晶し、融点53〜55℃の2−(3,4
−ジクロロフェニルチオメチル)グルタロニトリル6.14
gを得た。
Reference Example 1 2- (3,4-dichlorophenylthiomethyl) -4-methoxycarbonylbutyric acid 3.00 ml of 3,4-dichlorobenzenethiol and 2.57 ml of 2-methyleneglutaronitrile were dissolved in 25 ml of ethanol to give Triton B (40% methanol). After adding 10 drops of the solution), the mixture was heated to reflux for 4 hours. The reaction mixture was concentrated under reduced pressure, extracted with chloroform, washed with water, and dried over anhydrous magnesium sulfate. After evaporating the solvent under reduced pressure, the residue was recrystallized from diethyl ether-hexane to give 2- (3,4) having a melting point of 53 to 55 ° C.
-Dichlorophenylthiomethyl) glutaronitrile 6.14
got g.

元素分析値:(C12H10Cl2N2Sとして) C% H% N% 計算値 50.54 3.53 9.82 実測値 50.35 3.39 9.87 IR(KBr): νCN 2240cm-1 NMR(CDC13) δ:1.95〜2.25(2H,m),2.45〜2.75(2H,m),2.85〜2.9
5(1H,m),3.10(1H,dd,J=6.6,14.3Hz),3.22(1H,dd,
J=7.1,14.3Hz),7.28(1H,dd,J=1.7,8.2Hz),7.43(1
H,d,J=8.2Hz),7.54(1H,d,J=1.7Hz) 2−(3,4−ジクロロフェニルチオメチル)グルタロニ
トリル5.40gを酢酸36mlに溶かし、濃塩酸36mlを加え20
時間加熱還流させた。反応液を減圧下に濃縮し、ジエチ
ルエーテルを加え、不溶物をろ去後、水洗したのち炭酸
水素ナトリウム水溶液を加え振り混ぜた。水層を塩酸で
酸性としたのち、ジエチルエーテルで抽出し、水洗後無
水硫酸マグネシウムで乾燥した。減圧下に溶媒を留去
後、残留物をジエチルエーテル−ヘキサンより再結晶
し、融点112〜114℃の2−(3,4−ジクロロフェニルチ
オメチル)グルタル酸4.44gを得た。
Elemental analysis value: (as C 12 H 10 Cl 2 N 2 S) C% H% N% Calculated value 50.54 3.53 9.82 Measured value 50.35 3.39 9.87 IR (KBr): ν CN 2240cm -1 NMR (CDC1 3 ) δ: 1.95 ~ 2.25 (2H, m), 2.45 ~ 2.75 (2H, m), 2.85 ~ 2.9
5 (1H, m), 3.10 (1H, dd, J = 6.6,14.3Hz), 3.22 (1H, dd,
J = 7.1, 14.3Hz), 7.28 (1H, dd, J = 1.7, 8.2Hz), 7.43 (1
H, d, J = 8.2Hz), 7.54 (1H, d, J = 1.7Hz) 2- (3,4-dichlorophenylthiomethyl) glutaronitrile 5.40 g was dissolved in 36 ml of acetic acid and 36 ml of concentrated hydrochloric acid was added.
Heated to reflux for hours. The reaction solution was concentrated under reduced pressure, diethyl ether was added, the insoluble material was filtered off, washed with water, then an aqueous sodium hydrogen carbonate solution was added, and the mixture was shaken. The aqueous layer was acidified with hydrochloric acid, extracted with diethyl ether, washed with water, and dried over anhydrous magnesium sulfate. After evaporating the solvent under reduced pressure, the residue was recrystallized from diethyl ether-hexane to obtain 4.44 g of 2- (3,4-dichlorophenylthiomethyl) glutaric acid having a melting point of 112 to 114 ° C.

元素分析値:(C12H12Cl2O4Sとして) C% H% 計算値 44.60 3.74 実測値 44.35 3.66 IR(KBr): νC=0 1710cm-1 NMR(CDC13) δ:1.9〜2.1(2H,m),2.25〜2.5(2H,m),2.55〜2.7(1
H,m),3.01(1H,dd,J=6.0,13.2Hz),3.23(1H,dd,J=
7.7,13.2Hz),7.20(1H,dd,J=2.2,8.2Hz),7.35(1H,
d,J=8.2Hz),7.44(1H,d,J=2.2Hz) 2−(3,4−ジクロロフェニルチオメチル)グルタル酸
3.00gをメタノール30mlに溶かし、p−トルエンスルホ
ン酸0.09gを加え40℃で攪拌下に2.5時間反応させた。反
応液を減圧下に濃縮後、残留物をシリカゲルフラッシュ
カラムクロマトグラフィー(溶出溶媒:クロロホルム/
エタノール=10/1)で精製し、油状の2−(3,4−ジク
ロロフェニルチオメチル)−4−メトキシカルボニル酪
酸2.92gを得た。
Elemental analysis value: (as C 12 H 12 Cl 2 O 4 S) C% H% Calculated value 44.60 3.74 Measured value 44.35 3.66 IR (KBr): ν C = 0 1710 cm -1 NMR (CDC1 3 ) δ: 1.9 to 2.1 (2H, m), 2.25 ~ 2.5 (2H, m), 2.55 ~ 2.7 (1
H, m), 3.01 (1H, dd, J = 6.0, 13.2Hz), 3.23 (1H, dd, J =
7.7,13.2Hz), 7.20 (1H, dd, J = 2.2,8.2Hz), 7.35 (1H,
d, J = 8.2Hz), 7.44 (1H, d, J = 2.2Hz) 2- (3,4-dichlorophenylthiomethyl) glutaric acid
3.00 g was dissolved in 30 ml of methanol, 0.09 g of p-toluenesulfonic acid was added, and the mixture was reacted at 40 ° C. for 2.5 hours with stirring. The reaction solution was concentrated under reduced pressure, and the residue was subjected to silica gel flash column chromatography (elution solvent: chloroform /
Purification with ethanol = 10/1) gave 2.92 g of oily 2- (3,4-dichlorophenylthiomethyl) -4-methoxycarbonylbutyric acid.

IR(neat): νC=0 1740,1710cm-1 NMR(CDC13) δ:1.95〜2.1(2H,m),2.3〜2.5(2H,m),2.6〜2.75(1
H,m),3.01(1H,dd,J=6.0,13.2Hz),3.23(1H,dd,J=
7.7,13.2Hz),3.67(3H,s),7.19(1H,dd,J=2.2,8.2H
z),7.36(1H,d,J=8.2Hz),7.45(1H,d,J=2.2Hz) 参考例2 参考例1と同様にして表の化合物(油状)を製造した。
IR (neat): ν C = 0 1740,1710cm -1 NMR (CDC1 3) δ: 1.95~2.1 (2H, m), 2.3~2.5 (2H, m), 2.6~2.75 (1
H, m), 3.01 (1H, dd, J = 6.0, 13.2Hz), 3.23 (1H, dd, J =
7.7,13.2Hz), 3.67 (3H, s), 7.19 (1H, dd, J = 2.2,8.2H
z), 7.36 (1H, d, J = 8.2Hz), 7.45 (1H, d, J = 2.2Hz) Reference Example 2 In the same manner as in Reference Example 1, the compound (oil) in the table was produced.

参考例3 (+)−2−(3,4−ジクロロフェニルチオメチル)−
4−メトキシカルボニル酪酸および(−)−2−(3,4
−ジクロロフェニルチオメチル)−4−メトキシカルボ
ニル酪酸 (±)−2−(3,4−ジクロロフェニルチオメチル)−
4−メトキシカルボニル酪酸144.1gとキニン161.0gを2
−プロパノール400mlに加熱して溶かし、2−プロパノ
ール約250mlを減圧下に留去した。反応溶液を冷却し、
析出結晶をろ取後、2−プロパノールで再結晶を3回繰
り返すことにより、(+)−2−(3,4−ジクロロフェ
ニルチオメチル)−4−メトキシカルボニル酪酸とキニ
ンとの塩113.0gを得た。
Reference Example 3 (+)-2- (3,4-dichlorophenylthiomethyl)-
4-methoxycarbonylbutyric acid and (−)-2- (3,4
-Dichlorophenylthiomethyl) -4-methoxycarbonylbutyric acid (±) -2- (3,4-dichlorophenylthiomethyl)-
4-methoxycarbonylbutyric acid 144.1g and quinine 161.0g 2
-Hydrogen was dissolved in 400 ml of propanol by heating, and about 250 ml of 2-propanol was distilled off under reduced pressure. Cooling the reaction solution,
The precipitated crystals were collected by filtration, and then recrystallized from 2-propanol three times to obtain 113.0 g of a salt of (+)-2- (3,4-dichlorophenylthiomethyl) -4-methoxycarbonylbutyric acid and quinine. It was

この塩0.64gに2規定塩酸20mlを加え酢酸エチルで抽出
し、水洗後無水硫酸マグネシウムで乾燥した。減圧下に
溶媒を留去し、油状の(+)−2−(3,4−ジクロロフ
ェニルチオメチル)−4−メトキシカルボニル酪酸0.32
gを得た。
To 0.64 g of this salt, 20 ml of 2N hydrochloric acid was added, extracted with ethyl acetate, washed with water, and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure, and oily (+)-2- (3,4-dichlorophenylthiomethyl) -4-methoxycarbonylbutyric acid 0.32
got g.

比旋光度:〔α〕▲25 D▼+29.4°(C=1.44,MeOH) IR、NMRは参考例1と一致した。Specific rotation: [α] 25 D ▼ + 29.4 ° (C = 1.44, MeOH) IR and NMR were the same as in Reference Example 1.

一方、1回目の再結晶母液を塩酸処理して得られるフリ
ー体8.0gとキニジン7.7gを酢酸エチル40mlに加熱して溶
かし、酢酸エチル約20mlを減圧下に留去した。溶液を冷
却し、析出結晶をろ取後2−プロパノールより再結晶
し、(−)−2−(3,4−ジクロロフェニルチオメチ
ル)−4−メトキシカルボニル酪酸とキニジンとの塩1
1.7gを得た。
On the other hand, 8.0 g of the free form obtained by treating the first recrystallized mother liquor with hydrochloric acid and 7.7 g of quinidine were dissolved in 40 ml of ethyl acetate by heating, and about 20 ml of ethyl acetate was distilled off under reduced pressure. The solution was cooled, and the precipitated crystals were collected by filtration and recrystallized from 2-propanol to give a salt of (−)-2- (3,4-dichlorophenylthiomethyl) -4-methoxycarbonylbutyric acid and quinidine.
1.7 g was obtained.

この塩0.41gに2規定塩酸15mlを加え酢酸エチルで抽出
し、水洗後無水硫酸マグネシウムで乾燥した。減圧下に
溶媒を留去し、油状の(−)−2−(3,4−ジクロロフ
ェニルチオメチル)−4−メトキシカルボニル酪酸0.20
gを得た。
To this salt (0.41 g) was added 2N hydrochloric acid (15 ml), the mixture was extracted with ethyl acetate, washed with water, and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure, and oily (−)-2- (3,4-dichlorophenylthiomethyl) -4-methoxycarbonylbutyric acid 0.20
got g.

比旋光度:〔α〕▲25 D▼−28.3°(C=1.02,MeOH) IR、NMRは参考例1と一致した。Specific rotation: [α] 25 D -28.3 ° (C = 1.02, MeOH) IR and NMR were the same as in Reference Example 1.

参考例4 2−(3,4−ジクロロフェニルチオメチル)−5−メト
キシカルボニルペンタン酸 3,4−ジクロロベンゼンチオール0.20mlに、エタノール2
ml、2−メチレンアジピン酸ジtert−ブチル350mgおよ
びトリトンB(40%メタノール溶液)2滴を加え、封管
中攪拌下に170℃で17時間反応させた。反応液を減圧下
に濃縮後クロロホルムで抽出し、0.5%水酸化ナトリウ
ム水溶液、水および食塩水で順次洗い、無水硫酸マグネ
シウムで乾燥した。減圧下に溶媒を留去後残留物をシリ
カゲルフラッシュカラムクロマトグラフィー(溶出溶
媒:ジエチルエーテル/ヘキサン=1/10)で精製し、油
状の2−(3,4−ジクロロフェニルチオメチル)アジピ
ン酸ジtert−ブチル430mgを得た。
Reference Example 4 2- (3,4-Dichlorophenylthiomethyl) -5-methoxycarbonylpentanoic acid 3,4-dichlorobenzenethiol 0.20 ml, ethanol 2
ml, ditert-butyl 2-methylene adipate (350 mg) and 2 drops of Triton B (40% methanol solution) were added, and the mixture was reacted in a sealed tube at 170 ° C. for 17 hours while stirring. The reaction mixture was concentrated under reduced pressure, extracted with chloroform, washed successively with 0.5% aqueous sodium hydroxide solution, water and brine, and dried over anhydrous magnesium sulfate. After evaporating the solvent under reduced pressure, the residue was purified by silica gel flash column chromatography (eluting solvent: diethyl ether / hexane = 1/10) to give oily 2- (3,4-dichlorophenylthiomethyl) adipic acid ditert. -Butyl 430 mg was obtained.

IR(neat): νC=0 1725cm-1 NMR(CDCl3) δ:1.43(9H,s),1.47(9H,s),1.55〜1.7(4H,m),2.1
5〜2.25(2H,m),2.4〜2.55(1H,m),2.94(1H,dd,J=
6.0,13.2Hz),3.12(1H,dd,J=8.2,13.2Hz),7.17(1H,
dd,J=2.2,8.8Hz),7.34(1H,d,J=8.8Hz),7.43(1H,
d,J=2.2Hz) 2−(3,4−ジクロロフェニルチオメチル)アジピン酸
ジtert−ブチル550mgをベンゼン7mlに溶かし、p−トル
エンスルホン酸40mgを加え45分間加熱還流させた。反応
液を室温まで冷却し、メタノール7mlを加え40℃で2.5時
間反応させた。反応液を減圧下に濃縮乾固後、残留物を
シリカゲルフラッシュカラムクロマトグラフィー(溶出
溶媒:クロロホルム/メタノール=10/1)で精製し、油
状の2−(3,4−ジクロロフェニルチオメチル)−5−
メトキシカルボニルペンタン酸340mgを得た。
IR (neat): ν C = 0 1725 cm -1 NMR (CDCl 3 ) δ: 1.43 (9H, s), 1.47 (9H, s), 1.55 to 1.7 (4H, m), 2.1
5 to 2.25 (2H, m), 2.4 to 2.55 (1H, m), 2.94 (1H, dd, J =
6.0,13.2Hz), 3.12 (1H, dd, J = 8.2,13.2Hz), 7.17 (1H,
dd, J = 2.2,8.8Hz), 7.34 (1H, d, J = 8.8Hz), 7.43 (1H,
550 mg of di-tert-butyl 2- (3,4-dichlorophenylthiomethyl) adipate was dissolved in 7 ml of benzene, 40 mg of p-toluenesulfonic acid was added, and the mixture was heated under reflux for 45 minutes. The reaction solution was cooled to room temperature, 7 ml of methanol was added, and the mixture was reacted at 40 ° C for 2.5 hours. The reaction mixture was concentrated to dryness under reduced pressure, and the residue was purified by silica gel flash column chromatography (eluting solvent: chloroform / methanol = 10/1) to give oily 2- (3,4-dichlorophenylthiomethyl) -5. −
340 mg of methoxycarbonylpentanoic acid was obtained.

IR(neat): νC=0 1735,1705cm-1 NMR(CDCl3) δ:1.6〜1.85(4H,m),2.33(2H,t,J=6.6Hz),2.55〜
2.7(1H,m),3.00(1H,dd,J=6.0,13.2Hz),3.21(1H,d
d,J=7.7,13.2Hz),3.67(3H,s),7.19(1H,dd,J=2.2,
8.2Hz),7.35(1H,d,J=8.2Hz),7.44(1H,d,J=2.2H
z) 参考例5 3−(3,4−ジクロロフェニルチオ)−2−メトキシカ
ルボニルメチルプロピオン酸 3,4−ジクロロベンゼンチオール1.15mlと3−メトキシ
カルボニル−2−メチレンプロピオン酸ナトリウム1.50
gをメタノール40mlに溶かし、トリトンB(40%メタノ
ール溶液)5滴を加えたのち20時間加熱還流させた。反
応液を減圧下に濃縮後、希塩酸で酸性としジエチルエー
テルで抽出したのち水で洗い無水硫酸マグネシウムで乾
燥した。減圧下に溶媒を留去後、残留物をシリカゲルフ
ラッシュカラムクロマトグラフィー(溶出溶媒:クロロ
ホルム/エタノール=10/1)で精製し、油状の3−(3,
4−ジクロロフェニルチオ)−2−メトキシカルボニル
メチルプロピオン酸2.34gを得た。
IR (neat): ν C = 0 1735, 1705 cm -1 NMR (CDCl 3 ) δ: 1.6 to 1.85 (4H, m), 2.33 (2H, t, J = 6.6Hz), 2.55 to
2.7 (1H, m), 3.00 (1H, dd, J = 6.0,13.2Hz), 3.21 (1H, d
d, J = 7.7,13.2Hz), 3.67 (3H, s), 7.19 (1H, dd, J = 2.2,
8.2Hz), 7.35 (1H, d, J = 8.2Hz), 7.44 (1H, d, J = 2.2H
z) Reference example 5 3- (3,4-dichlorophenylthio) -2-methoxycarbonylmethylpropionic acid 1.15 ml of 3,4-dichlorobenzenethiol and sodium 3-methoxycarbonyl-2-methylenepropionate 1.50
g was dissolved in 40 ml of methanol, 5 drops of Triton B (40% methanol solution) was added, and the mixture was heated under reflux for 20 hours. The reaction solution was concentrated under reduced pressure, acidified with diluted hydrochloric acid, extracted with diethyl ether, washed with water, and dried over anhydrous magnesium sulfate. After evaporating the solvent under reduced pressure, the residue was purified by silica gel flash column chromatography (eluting solvent: chloroform / ethanol = 10/1) to give an oily 3- (3,
2.34 g of 4-dichlorophenylthio) -2-methoxycarbonylmethylpropionic acid was obtained.

IR(neat): νC=0 1740,1710cm-1 NMR(CDCl3) δ:2.65〜2.9(2H,m),3.0〜3.2(2H,m),3.3〜3.45(1
H,m),3.69(3H,s),7.20(1H,dd,J=2.2,8.2Hz),7.36
(1H,d,J=8.2Hz),7.46(1H,d,J=2.2Hz) 実施例1 5−(3,4−ジクロロフェニルチオ)−4−(N,N−ジペ
ンチルカルバモイル)ペンタン酸メチル 2−(3,4−ジクロロフェニルチオメチル)−4−メト
キシカルボニル酪酸2.90gを乾燥ベンゼン50mlに溶か
し、塩化チオニル1.0mlを加え2時間加熱還流させた。
反応液を減圧下に濃縮乾固し、油状の残留物を得た。こ
の残留物の乾燥塩化メチレン30ml溶液を、ジペンチルア
ミン1.8mlおよびトリエチルアミン1.8mlの乾燥塩化メチ
レン50ml溶液に、氷冷攪拌下に滴下したのち、室温で4
時間反応させた。反応液を希塩酸、炭酸水素ナトリウム
水溶液および水で順次洗ったのち、無水硫酸マグネシウ
ムで乾燥した。減圧下に溶媒を留去後、残留物をシリカ
ゲルフラッシュカラムクロマトグラフィー(溶出溶媒:
クロロホルム)で精製し、油状の5−(3,4−ジクロロ
フェニルチオ)−4−(N,N−ジペンチルカルバモイ
ル)ペンタン酸メチル3.80gを得た。
IR (neat): ν C = 0 1740,1710 cm -1 NMR (CDCl 3 ) δ: 2.65 to 2.9 (2H, m), 3.0 to 3.2 (2H, m), 3.3 to 3.45 (1
H, m), 3.69 (3H, s), 7.20 (1H, dd, J = 2.2,8.2Hz), 7.36
(1H, d, J = 8.2Hz), 7.46 (1H, d, J = 2.2Hz) Example 1 Methyl 5- (3,4-dichlorophenylthio) -4- (N, N-dipentylcarbamoyl) pentanoate 2 2.90 g of-(3,4-dichlorophenylthiomethyl) -4-methoxycarbonylbutyric acid was dissolved in 50 ml of dry benzene, 1.0 ml of thionyl chloride was added, and the mixture was heated under reflux for 2 hours.
The reaction solution was concentrated to dryness under reduced pressure to obtain an oily residue. A solution of this residue in dry methylene chloride (30 ml) was added dropwise to a solution of dipentylamine (1.8 ml) and triethylamine (1.8 ml) in dry methylene chloride (50 ml) under ice-cooling, and the mixture was stirred at room temperature for 4 hours.
Reacted for hours. The reaction solution was washed successively with diluted hydrochloric acid, an aqueous solution of sodium hydrogen carbonate and water, and then dried over anhydrous magnesium sulfate. After evaporating the solvent under reduced pressure, the residue was subjected to silica gel flash column chromatography (eluting solvent:
After purification with chloroform), 3.80 g of oily methyl 5- (3,4-dichlorophenylthio) -4- (N, N-dipentylcarbamoyl) pentanoate was obtained.

IR(neat): νC=0 1735,1630cm-1 NMR(CDCl3) δ:0.86(3H,t,J=7.1Hz),0.89(3H,t,J=7.1Hz),1.0
5〜1.6(12H,m),1.9〜2.1(2H,m),2.2〜2.45(2H,
m),2.85〜3.45(7H,m),3.67(3H,s),7.16(1H,dd,J
=2.2,8.2Hz),7.34(1H,d,J=8.2Hz),7.40(1H,d,J=
2.2Hz) 実施例2 実施例1と同様にして表の化合物(油状)を製造した。
IR (neat): ν C = 0 1735, 1630 cm -1 NMR (CDCl 3 ) δ: 0.86 (3H, t, J = 7.1Hz), 0.89 (3H, t, J = 7.1Hz), 1.0
5 to 1.6 (12H, m), 1.9 to 2.1 (2H, m), 2.2 to 2.45 (2H, m
m), 2.85 to 3.45 (7H, m), 3.67 (3H, s), 7.16 (1H, dd, J
= 2.2,8.2Hz), 7.34 (1H, d, J = 8.2Hz), 7.40 (1H, d, J =
2.2 Hz) Example 2 In the same manner as in Example 1, the compounds in the table (oil) were produced.

ただし、比旋光度が無記載の化合物はラセミ体である。However, the compound with no specific optical rotation is a racemate.

実施例3 5−(3,4−ジクロロフェニルチオ)−4−(N,N−ジペ
ンチルカルバモイル)ペンタン酸 5−(3,4−ジクロロフェニルチオ)−4−(N,N−ジペ
ンチルカルバモイル)ペンタン酸メチル0.66gをエタノ
ール6mlに溶かし、2規定水酸化ナトリウム水溶液0.7ml
を加え室温で4時間反応させた。反応液を減圧下に濃縮
後、希塩酸で酸性とし酢酸エチルで抽出し、水洗後無水
硫酸マグネシウムで乾燥した。減圧下に溶媒を留去後、
残留物をシリカゲルフラッシュカラムクロマトグラフィ
ー(溶出溶媒:クロロホルム/エタノール=15/1)で精
製し、油状の5−(3,4−ジクロロフェニルチオ)−4
−(N,N−ジペンチルカルバモイル)ペンタン酸0.51gを
得た。
Example 3 Methyl 5- (3,4-dichlorophenylthio) -4- (N, N-dipentylcarbamoyl) pentanoic acid 5- (3,4-Dichlorophenylthio) -4- (N, N-dipentylcarbamoyl) pentanoic acid Dissolve 0.66g in 6ml of ethanol, 0.7ml of 2N sodium hydroxide solution
Was added and reacted at room temperature for 4 hours. The reaction solution was concentrated under reduced pressure, acidified with diluted hydrochloric acid, extracted with ethyl acetate, washed with water, and dried over anhydrous magnesium sulfate. After distilling off the solvent under reduced pressure,
The residue was purified by silica gel flash column chromatography (eluting solvent: chloroform / ethanol = 15/1) to give oily 5- (3,4-dichlorophenylthio) -4.
0.51 g of-(N, N-dipentylcarbamoyl) pentanoic acid was obtained.

IR(neat): νC=0 1725,1630cm-1 NMR(CDCl3) δ:0.85(3H,t,J=7.1Hz),0.89(3H,t,J=7.1Hz),1.0
5〜1.6(12H,m),1.9〜2.1(2H,m),2.25〜2.55(2H,
m),2.85〜3.4(7H,m),7.16(1H,dd,J=2.2,8.8Hz),
7.34(1H,d,J=8.8Hz),7.40(1H,d,J=2.2Hz) 実施例4 実施例3と同様にして表の化合物を製造した。
IR (neat): ν C = 0 1725,1630 cm -1 NMR (CDCl 3 ) δ: 0.85 (3H, t, J = 7.1Hz), 0.89 (3H, t, J = 7.1Hz), 1.0
5 to 1.6 (12H, m), 1.9 to 2.1 (2H, m), 2.25 to 2.55 (2H, m
m), 2.85 to 3.4 (7H, m), 7.16 (1H, dd, J = 2.2,8.8Hz),
7.34 (1H, d, J = 8.8Hz), 7.40 (1H, d, J = 2.2Hz) Example 4 The compounds in the table were produced in the same manner as in Example 3.

参考例6 5−(3,4−ジクロロフェニルスルフィニル)−4−
(N,N−ジペンチルカルバモイル)ペンタン酸メチルお
よび5−(3,4−ジクロロフェニルスルフィニル)−4
−(N,N−ジペンチルカルバモイル)ペンタン酸 5−(3,4−ジクロロフェニルチオ)−4−(N,N−ジペ
ンチルカルバモイル)ペンタン酸メチル5.12gを乾燥塩
化メチレン100mlに溶かし、−78℃で撹拌下にm−クロ
ロ過安息香酸(70%)2.65gを小量ずつ加えたのち、2
時間反応させた。反応液に亜硫酸ナトリウムを加えたの
ち炭酸水素ナトリウム水溶液で洗い、水洗後無水硫酸マ
グネシウムで乾燥した。減圧下に溶媒を留去後、残留物
をシリカゲルフラッシュカラムクロマトグラフィー(溶
出溶媒:塩化メチレン/ジエチルエーテル/ヘキサン=
1/1/2)で精製し、先に溶出する5−(3,4−ジクロロフ
ェニルスルフィニル)−4−(N,N−ジペンチルカルバ
モイル)ペンタン酸メチル(ジアステレオマーA)2.39
gと、後に溶出するジアステレオマーB2.47gを得た。
Reference Example 6 5- (3,4-dichlorophenylsulfinyl) -4-
Methyl (N, N-dipentylcarbamoyl) pentanoate and 5- (3,4-dichlorophenylsulfinyl) -4
5.12 g of methyl 5- (3,4-dichlorophenylthio) -4- (N, N-dipentylcarbamoyl) pentanoate-(N, N-dipentylcarbamoyl) pentanoic acid was dissolved in 100 ml of dry methylene chloride and stirred at -78 ° C. 2.65 g of m-chloroperbenzoic acid (70%) was added little by little to the bottom, and then 2
Reacted for hours. Sodium sulfite was added to the reaction solution, washed with an aqueous solution of sodium hydrogen carbonate, washed with water, and dried over anhydrous magnesium sulfate. After evaporating the solvent under reduced pressure, the residue was subjected to silica gel flash column chromatography (elution solvent: methylene chloride / diethyl ether / hexane =
Purified by 1/1/2) and eluted first with methyl 5- (3,4-dichlorophenylsulfinyl) -4- (N, N-dipentylcarbamoyl) pentanoate (diastereomer A) 2.39
g, and 2.47 g of the diastereomer B that elutes later were obtained.

〔ジアステレオマーA〕[Diastereomer A]

融点:64〜65℃ 元素分析値:(C23H35Cl2NO4Sとして) C% H% N% 計算値 56.09 7.16 2.84 実測値 56.07 7.36 2.84 IR(KBr): νC=0 1730,1630cm-1 νSO 1040cm-1 NMR(CDCl3) δ:0.90(3H,t,J=7.1Hz),0.94(3H,t,J=7.1Hz),1.2
〜2.1(14H,m),2.33(2H,t,J=7.1Hz),2.74(1H,dd,J
=2.8,12.1Hz),3.2〜3.6(6H,m),3.66(3H,s),7.47
(1H,dd,J=2.2,8.2Hz),7.60(1H,d,J=8.2Hz),7.78
(1H,d,J=2.2Hz) 〔ジアステレオマーB〕 性状:油状 IR(neat): νC=0 1735,1635cm-1 νSO 1050cm-1 NMR(CDCl3) δ:0.87(3H,t,J=7.1Hz),0.94(3H,t,J=7.1Hz),1.1
5〜1.65(12H,m),2.05〜2.6(4H,m),2.85〜3.4(7H,
m),3.69(3H,s),7.39(1H,dd,J=2.2,8.2Hz),7.58
(1H,d,J=8.2Hz),7.74(1H,d,J=2.2Hz) 5−(3,4−ジクロロフェニルスルフィニル)−4−
(N,N−ジペンチルカルバモイル)ペンタン酸メチル
(ジアステレオマーA)2.39gを50%含水エタノール90m
lに溶かし、1規定水酸化ナトリウム水溶液4.9mlを加え
室温で16時間反応させた。反応液を減圧下に濃縮後、希
塩酸を加え酸性とし、クロロホルムで抽出し水洗後無水
硫酸マグネシウムで乾燥した。減圧下に溶媒を留去し、
残留物をシリカゲルフラッシュカラムクロマトグラフィ
ー(溶出溶媒:クロロホルム/エタノール=10/1)で精
製し、油状の5−(3,4−ジクロロフェニルスルフィニ
ル)−4−(N,N−ジペンチルカルバモイル)ペンタン
酸(ジアステレオマーA)1.68gを得た。
Mp: 64-65 ° C. Elemental analysis: (C 23 H 35 Cl as 2 NO 4 S) C% H % N% Calculated 56.09 7.16 2.84 Found 56.07 7.36 2.84 IR (KBr): ν C = 0 1730,1630cm -1 ν SO 1040 cm -1 NMR (CDCl 3 ) δ: 0.90 (3H, t, J = 7.1Hz), 0.94 (3H, t, J = 7.1Hz), 1.2
~ 2.1 (14H, m), 2.33 (2H, t, J = 7.1Hz), 2.74 (1H, dd, J
= 2.8, 12.1Hz), 3.2 to 3.6 (6H, m), 3.66 (3H, s), 7.47
(1H, dd, J = 2.2,8.2Hz), 7.60 (1H, d, J = 8.2Hz), 7.78
(1H, d, J = 2.2Hz) [Diastereomer B] Property: Oily IR (neat): ν C = 0 1735,1635cm -1 ν SO 1050cm -1 NMR (CDCl 3 ) δ: 0.87 (3H, t , J = 7.1Hz), 0.94 (3H, t, J = 7.1Hz), 1.1
5 to 1.65 (12H, m), 2.05 to 2.6 (4H, m), 2.85 to 3.4 (7H,
m), 3.69 (3H, s), 7.39 (1H, dd, J = 2.2,8.2Hz), 7.58
(1H, d, J = 8.2Hz), 7.74 (1H, d, J = 2.2Hz) 5- (3,4-dichlorophenylsulfinyl) -4-
2.39 g of methyl (N, N-dipentylcarbamoyl) pentanoate (diastereomer A) in 50% water-containing ethanol 90 m
It was dissolved in 1 l, 4.9 ml of 1N aqueous sodium hydroxide solution was added, and the mixture was reacted at room temperature for 16 hours. The reaction solution was concentrated under reduced pressure, acidified with diluted hydrochloric acid, extracted with chloroform, washed with water, and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure,
The residue was purified by silica gel flash column chromatography (eluting solvent: chloroform / ethanol = 10/1), and oily 5- (3,4-dichlorophenylsulfinyl) -4- (N, N-dipentylcarbamoyl) pentanoic acid ( 1.68 g of diastereomer A) was obtained.

IR(neat): νC=0 1725,1630cm-1 νSO 1050cm-1 NMR(CDCl3) δ:0.90(3H,t,J=7.1Hz),0.91(3H,t,J=7.1Hz),1.2
〜2.15(14H,m),2.37(2H,t,J=7.1Hz),2.86(1H,dd,
J=2.8,12.6Hz),3.2〜3.6(6H,m),7.48(1H,dd,J=2.
2,8.2Hz),7.60(1H,d,J=8.2Hz),7.78(1H,d,J=2.2H
z) 参考例7 5−(3,4−ジクロロフェニルスルホニル)−4−(N,N
−ジペンチルカルバモイル)ペンタン酸メチルおよび5
−(3,4−ジクロロフェニルスルホニル)−4−(N,N−
ジペンチルカルバモイル)ペンタン酸 5−(3,4−ジクロロフェニルチオ)−4−(N,N−ジペ
ンチルカルバモイル)ペンタン酸メチル54.3gを乾燥塩
化メチレン500mlに溶かし、氷冷撹拌下にm−クロロ過
安息香酸(80%)59.5gを少量ずつ加えたのち、室温で
4時間反応させた。反応液に亜硫酸ナトリウムを加えた
のち、炭酸水素ナトリウム水溶液および水で順次洗い無
水硫酸マグネシウムで乾燥した。減圧下に溶媒を留去
後、残留物をヘキサンより再結晶し、融点52〜54℃の5
−(3,4−ジクロロフェニルスルホニル)−4−(N,N−
ジペンチルカルバモイル)ペンタン酸メチル49.5gを得
た。
IR (neat): ν C = 0 1725,1630 cm −1 ν SO 1050 cm −1 NMR (CDCl 3 ) δ: 0.90 (3H, t, J = 7.1Hz), 0.91 (3H, t, J = 7.1Hz), 1.2
~ 2.15 (14H, m), 2.37 (2H, t, J = 7.1Hz), 2.86 (1H, dd,
J = 2.8,12.6Hz), 3.2 to 3.6 (6H, m), 7.48 (1H, dd, J = 2.
2,8.2Hz), 7.60 (1H, d, J = 8.2Hz), 7.78 (1H, d, J = 2.2H
z) Reference Example 7 5- (3,4-dichlorophenylsulfonyl) -4- (N, N
Methyl dipentylcarbamoyl) pentanoate and 5
-(3,4-Dichlorophenylsulfonyl) -4- (N, N-
Dipentylcarbamoyl) pentanoic acid 5- (3,4-dichlorophenylthio) -4- (N, N-dipentylcarbamoyl) pentanoic acid 54.3 g was dissolved in 500 ml of dry methylene chloride, and m-chloroperbenzoic acid was stirred under ice cooling. After adding 59.5 g (80%) little by little, the mixture was reacted at room temperature for 4 hours. After adding sodium sulfite to the reaction solution, it was washed successively with an aqueous solution of sodium hydrogen carbonate and water and dried over anhydrous magnesium sulfate. After distilling off the solvent under reduced pressure, the residue was recrystallized from hexane, and the melting point was 52 to 54 ° C.
-(3,4-Dichlorophenylsulfonyl) -4- (N, N-
49.5 g of methyl dipentylcarbamoyl) pentanoate was obtained.

元素分析値:(C23H35Cl2NO5Sとして) C% H% N% 計算値 54.33 6.94 2.75 実測値 54.28 6.98 2.51 NMR(CDCl3) δ:0.88(3H,t,J=7.1Hz),0.95(3H,t,J=7.1Hz),1.1
5〜2.1(14H,m),2.33(2H,t,J=7.7Hz),3.0〜3.45(6
H,m),3.68(3H,s),3.83(1H,dd,J=8.8,14.3Hz),7.6
3(1H,d,J=8.2Hz),7.72(1H,dd,J=1.7,8.2Hz),7.97
(1H,d,J=1.7Hz) 5−(3,4−ジクロロフェニルスルホニル)−4−(N,N
−ジペンチルカルバモイル)ペンタン酸メチル40.3gを
エタノール500mlに溶かし、2規定水酸化ナトリウム水
溶液40mlを加え室温で16時間反応させた。反応液を減圧
下に濃縮後、希塩酸で酸性としクロロホルムで抽出し、
水洗後無水硫酸マグネシウムで乾燥した。減圧下に溶媒
を留去後、残留物をジエチルエーテル−ヘキサンより再
結晶し、融点76〜79℃の5−(3,4−ジクロロフェニル
スルホニル)−4−(N,N−ジペンチルカルバモイル)
ペンタン酸38.2gを得た。
Elemental analysis value: (as C 23 H 35 Cl 2 NO 5 S) C% H% N% Calculated value 54.33 6.94 2.75 Measured value 54.28 6.98 2.51 NMR (CDCl 3 ) δ: 0.88 (3H, t, J = 7.1Hz), 0.95 (3H, t, J = 7.1Hz), 1.1
5 to 2.1 (14H, m), 2.33 (2H, t, J = 7.7Hz), 3.0 to 3.45 (6
H, m), 3.68 (3H, s), 3.83 (1H, dd, J = 8.8, 14.3Hz), 7.6
3 (1H, d, J = 8.2Hz), 7.72 (1H, dd, J = 1.7,8.2Hz), 7.97
(1H, d, J = 1.7Hz) 5- (3,4-dichlorophenylsulfonyl) -4- (N, N
40.3 g of methyl dipentylcarbamoyl) pentanoate was dissolved in 500 ml of ethanol, 40 ml of 2N aqueous sodium hydroxide solution was added, and the mixture was reacted at room temperature for 16 hours. The reaction solution was concentrated under reduced pressure, acidified with diluted hydrochloric acid and extracted with chloroform,
After washing with water, it was dried over anhydrous magnesium sulfate. After evaporating the solvent under reduced pressure, the residue was recrystallized from diethyl ether-hexane to give 5- (3,4-dichlorophenylsulfonyl) -4- (N, N-dipentylcarbamoyl) having a melting point of 76 to 79 ° C.
38.2 g of pentanoic acid was obtained.

元素分析値:(C22H33Cl2NO5Sとして) C% H% N% 計算値 53.44 6.73 2.83 実測値 53.17 6.68 2.76 NMR(CDCl3) δ:0.88(3H,t,J=7.1Hz),0.94(3H,t,J=7.1Hz),1.1
5〜2.1(14H,m),2.39(2H,t,J=7.1Hz),3.0〜3.5(6
H,m),3.83(1H,dd,J=8.8,14.3Hz),7.63(1H,d,J=8.
2Hz),7.73(1H,dd,J=2.2,8.2Hz),7.97(1H,d,J=2.2
Hz)
Elemental analysis value: (as C 22 H 33 Cl 2 NO 5 S) C% H% N% Calculated value 53.44 6.73 2.83 Measured value 53.17 6.68 2.76 NMR (CDCl 3 ) δ: 0.88 (3H, t, J = 7.1Hz), 0.94 (3H, t, J = 7.1Hz), 1.1
5 to 2.1 (14H, m), 2.39 (2H, t, J = 7.1Hz), 3.0 to 3.5 (6
H, m), 3.83 (1H, dd, J = 8.8,14.3Hz), 7.63 (1H, d, J = 8.
2Hz), 7.73 (1H, dd, J = 2.2,8.2Hz), 7.97 (1H, d, J = 2.2
Hz)

───────────────────────────────────────────────────── フロントページの続き (72)発明者 阪 正昭 長野県松本市野溝木工1―2―34 キッセ イ薬品第二青友寮 (72)発明者 小林 通洋 長野県東筑摩郡明科町大字中川手3158番地 審査官 脇村 善一 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masaaki Saka, Masaaki Saka 1-2-34 Nomizo Woodwork, Matsumoto-shi, Nagano Kissei Yakuhin Dairyo Dormitory (72) Inventor Toyohiro Kobayashi 3158 Nakagawate, Meishina-cho, Higashichikuma-gun, Nagano Prefecture Address Examiner Zenichi Wakimura

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】一般式 (式中のR1は炭素数1〜10のアルキル基または炭素数3
〜7のアルコキシアルキル基であり、R2は炭素数1〜10
のアルキル基であり、R3は水素原子または炭素数1〜4
のアルキル基であり、Xはハロゲン原子であり、mは
1、2または3であり、nは1または2である)で表さ
れるフェニルチオアルキルカルボン酸誘導体。
1. A general formula (R 1 in the formula is an alkyl group having 1 to 10 carbon atoms or 3 carbon atoms
~ 7 alkoxyalkyl group, R 2 has 1 to 10 carbon atoms.
Is an alkyl group of R 3 , and R 3 is a hydrogen atom or has 1 to 4 carbon atoms.
Is an alkyl group, X is a halogen atom, m is 1, 2 or 3, and n is 1 or 2.).
JP21188890A 1990-08-10 1990-08-10 Phenylthioalkylcarboxylic acid derivative Expired - Lifetime JPH07119205B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21188890A JPH07119205B2 (en) 1990-08-10 1990-08-10 Phenylthioalkylcarboxylic acid derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21188890A JPH07119205B2 (en) 1990-08-10 1990-08-10 Phenylthioalkylcarboxylic acid derivative

Publications (2)

Publication Number Publication Date
JPH0495059A JPH0495059A (en) 1992-03-27
JPH07119205B2 true JPH07119205B2 (en) 1995-12-20

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Country Status (1)

Country Link
JP (1) JPH07119205B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0994104A4 (en) * 1996-06-27 2001-09-12 Ono Pharmaceutical Co Aryl (sulfide, sulfoxide and sulfone) derivatives and drugs containing the same as the active ingredient
US20230331662A1 (en) * 2021-06-24 2023-10-19 Fujian Changting Golden Dragon Rare-Earth Co., Ltd. An n,n-dihydrocarbonylamide carboxylic acid, preparation method therefor and use thereof

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