JPH04270291A - Thiazino(6,5-b)indolizine derivative - Google Patents

Thiazino(6,5-b)indolizine derivative

Info

Publication number
JPH04270291A
JPH04270291A JP11419991A JP11419991A JPH04270291A JP H04270291 A JPH04270291 A JP H04270291A JP 11419991 A JP11419991 A JP 11419991A JP 11419991 A JP11419991 A JP 11419991A JP H04270291 A JPH04270291 A JP H04270291A
Authority
JP
Japan
Prior art keywords
thiazino
indolizine
lower alkyl
formula
compound
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.)
Pending
Application number
JP11419991A
Other languages
Japanese (ja)
Inventor
Shoichi Kakehi
筧 昭一
Suketaka Itou
伊東 祐隆
Hidetoshi Izawa
英俊 伊澤
Manabu Enomoto
学 榎本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kissei Pharmaceutical Co Ltd
Original Assignee
Kissei Pharmaceutical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kissei Pharmaceutical Co Ltd filed Critical Kissei Pharmaceutical Co Ltd
Priority to JP11419991A priority Critical patent/JPH04270291A/en
Publication of JPH04270291A publication Critical patent/JPH04270291A/en
Pending legal-status Critical Current

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  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

PURPOSE:To obtain a new thiazinoindolizine derivative, having antiallergic, antitinflammatory, analgesic actions, etc., and useful as a medicine. CONSTITUTION:A thiazino[6,5-b]indolizine derivative, e.g. ethyl 3-allyl-8-ethyl-4- oxo-2-thioxo-2H-2,3-dihydro[1,3]thiazino[6,5-b]indolizine-10-carboxylate expressed by formula I (R<1> and R<2> are H or lower alkyl; R<3> is lower alkyl; R is lower alkyl, lower alkenyl or phenyl; Z is O or S). The aforementioned compound is obtained by reacting an indolizine compound expressed by formula II (R<4> is lower alkyl; R<5> is lower alkoxycarbonyl or cyano) in the presence of tert. butoxypotassium in N,N-dimethylformamide or dimethyl sulfoxide at ambient temperature to 100 deg.C, then removing produced by-products to the outside of the system under a reduced pressure, further adding an iso(thio)cyanate compound expressed by the formula R-N=C=S to the reaction solution and carrying out reaction at ambient temperature to 100 deg.C.

Description

【発明の詳細な説明】[Detailed description of the invention]

【0001】0001

【産業上の利用分野】本発明は医薬品として有用なチア
ジノ〔6,5−b〕インドリジン誘導体に関するもので
ある。
TECHNICAL FIELD The present invention relates to thiazino[6,5-b]indolizine derivatives useful as pharmaceuticals.

【0002】さらに詳しく述べれば、本発明は抗アレル
ギー作用、消炎作用または鎮痛作用等の薬理作用を有し
、医薬品として有用な、一般式
More specifically, the present invention provides a general formula that has pharmacological effects such as antiallergic, antiinflammatory, and analgesic effects and is useful as a pharmaceutical.

【化2】 (式中のR1およびR2は同じでも異なっていてもよく
、それぞれ水素原子または低級アルキル基であり、R3
は低級アルキル基であり、Rは低級アルキル基、低級ア
ルケニル基またはフェニル基であり、Zは酸素原子また
は硫黄原子である)で表されるチアジノ〔6,5−b〕
インドリジン誘導体に関するものである。
[Formula 2] (R1 and R2 may be the same or different, each is a hydrogen atom or a lower alkyl group, and R3
is a lower alkyl group, R is a lower alkyl group, lower alkenyl group, or phenyl group, and Z is an oxygen atom or a sulfur atom) Thiazino[6,5-b]
This invention relates to indolizine derivatives.

【0003】0003

【従来の技術】本発明の一般式(I)で表されるような
チアジノ〔6,5−b〕インドリジン骨格の化合物は今
まで知られておらず、全く新規な化合物である。
BACKGROUND OF THE INVENTION A compound having a thiazino[6,5-b]indolizine skeleton as represented by the general formula (I) of the present invention has not been known so far and is a completely new compound.

【0004】0004

【発明が解決しようとする課題】本発明の目的は、抗ア
レルギー作用、消炎作用または鎮痛作用等の薬理作用を
有し、医薬品として有用なチアジノ〔6,5−b〕イン
ドリジン誘導体を提供することである。
OBJECTS OF THE INVENTION An object of the present invention is to provide thiazino[6,5-b]indolizine derivatives that have pharmacological effects such as antiallergic, antiinflammatory, and analgesic effects and are useful as pharmaceuticals. That's true.

【0005】[0005]

【課題を解決するための手投】本発明者らは、インドリ
ジン誘導体について鋭意研究した結果、インドリジン環
にチアジン環を縮合したある種の化合物が抗アレルギー
作用、消炎作用または鎮痛作用等、薬理作用を有するこ
とを見出し、本発明をなすに至った。
[Measures to Solve the Problems] As a result of intensive research on indolizine derivatives, the present inventors found that certain compounds in which a thiazine ring is fused to an indolizine ring have anti-allergic, anti-inflammatory or analgesic effects, etc. It was discovered that it has pharmacological effects, and the present invention was completed.

【0006】ここで、本発明の一般式(I)で表される
化合物において、低級アルキル基.は炭素数1〜6の直
鎖状または枝分かれ状のアルキル基をいい、低級アルケ
ニル基とは炭素数2〜6の直鎖状または枝分かれ状のア
ルケニル基をいう。
[0006] Here, in the compound represented by the general formula (I) of the present invention, a lower alkyl group. refers to a linear or branched alkyl group having 1 to 6 carbon atoms, and the lower alkenyl group refers to a linear or branched alkenyl group having 2 to 6 carbon atoms.

【0007】本発明の一般式(I)で表されるチアジノ
〔6,5−b〕インドリジン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 thiazino[6,5-b]indolizine derivative represented by the general formula (I) of the present invention is a novel compound and can be produced as follows.

【0008】すなわち、一般式That is, the general formula

【化3】 (式中のR4は低級アルキル基であり、R5は低級アル
コキシカルボニル基またはシアノ基であり、R1、R2
およびR3は前記と同じ意味をもつ)で表されるインド
リジン誘導体を、塩基の存在下で、一般式      
            R−N=C=Z      
                         
       (III) (式中のRおよびZは前記と同じ意味をもつ)で表され
るイソシアネートまたはイソチオシアネート化合物と反
応させることにより製造することができる。
embedded image (in the formula, R4 is a lower alkyl group, R5 is a lower alkoxycarbonyl group or a cyano group, R1, R2
and R3 have the same meanings as above) in the presence of a base, the indolizine derivative represented by the general formula
RN=C=Z

(III) It can be produced by reacting with an isocyanate or an isothiocyanate compound represented by (in the formula, R and Z have the same meanings as above).

【0009】本発明の一般式(I)で表される化合物を
製造する上述の方法は、一般に不活性溶媒中で行われる
。不活性溶媒としては、N,N−ジメチルホルムアミド
、ジメチルスルホキシド、テトラヒドロフラン、アセト
ニトリル等を用いることができる。
The above-mentioned process for producing the compound of general formula (I) of the present invention is generally carried out in an inert solvent. As the inert solvent, N,N-dimethylformamide, dimethyl sulfoxide, tetrahydrofuran, acetonitrile, etc. can be used.

【0010】塩基としては、金属ナトリウム、水素化ナ
トリウム等の無機塩基、t−ブトキシカリウム等の有機
塩基を用いることができる。
As the base, inorganic bases such as metallic sodium and sodium hydride, and organic bases such as t-butoxypotassium can be used.

【0011】本発明の製造方法は、単離が困難な中間体
である、一般式
The production method of the present invention is an intermediate that is difficult to isolate, the general formula

【化4】 (式中のYはカリウム原子またはナトリウム原子であり
、R1、R2、R3およびR4は前記と同じ意味である
)で表される化合物を経由するものであり、一般式(I
)におけるS置換基がアクリル酸エチルまたは、アクリ
ロニトリルとして脱離する。そのため、塩基の存在下で
一般式(IV)で表される化合物を形成させた後、発生
したアクリル酸エチルまたはアクリロニトリルを減圧除
去等により系外に排除するのが好ましい。また、脱離基
としては、脱離性がよく、脱離した後、反応系において
悪影響を及ぼさないような他の基を用いても構わない。
[I
) is eliminated as ethyl acrylate or acrylonitrile. Therefore, after forming the compound represented by the general formula (IV) in the presence of a base, it is preferable to remove the generated ethyl acrylate or acrylonitrile from the system by removal under reduced pressure or the like. Further, as the leaving group, other groups that have good elimination properties and do not have an adverse effect on the reaction system after elimination may be used.

【0012】本発明の製造方法において出発物質として
用いられる一般式(II)で表される化合物は一部新規
物質が含まれるが、ブレチン  オブ  ザ  ケミカ
ル  ソサイアティー  オブ  ジャパン(Bull
.Chem.Soc.Jpn.),63巻、829〜8
34ページ、1990年等の文献記載の方法またはそれ
と類似の方法により製造することができる。
[0012] Some of the compounds represented by the general formula (II) used as starting materials in the production method of the present invention include new substances, but are
.. Chem. Soc. Jpn. ), vol.63, 829-8
It can be produced by the method described in the literature, such as p. 34, 1990, or a method similar thereto.

【0013】本発明を好適に実施するには、一般式(I
I)で表される化合物を、N,N−ジメチルホルムアミ
ドまたはジメチルスルホキシド中1.5〜2.5当量の
t−ブトキシカリウムの存在下、室温から100℃で数
分から数時間反応させた後、発生した脱離生成物を減圧
除去し、これに一般式(III)で表される1.0〜2
.0当量のイソシアネートまたはイソチオシアネート化
合物を加え、室温から100℃で数時間から1日反応し
、冷却後、希塩酸等を用いて反応液を中和する。
In order to suitably carry out the present invention, the general formula (I
After reacting the compound represented by I) in the presence of 1.5 to 2.5 equivalents of potassium t-butoxy in N,N-dimethylformamide or dimethyl sulfoxide at room temperature to 100°C for several minutes to several hours, The generated desorption product is removed under reduced pressure, and the 1.0 to 2
.. Add 0 equivalent of isocyanate or isothiocyanate compound, react at room temperature to 100° C. for several hours to one day, and after cooling, neutralize the reaction solution using dilute hydrochloric acid or the like.

【0014】また、このようにして得られた反応混合物
を通常の精製方法、例えば、カラムクロマトグラフィー
あるいは分別結晶等の操作を行い目的物質を得る。
Further, the reaction mixture thus obtained is subjected to a conventional purification method such as column chromatography or fractional crystallization to obtain the target substance.

【0015】本発明の一般式(I)で表されるチアジノ
〔6,5−b〕インドリジン誘導体は抗アレルギー作用
、消炎作用、鎮痛作用等を示し、医薬品として有用であ
る。本発明の一般式(I)の化合物を実際の治療に用い
る場合、種々の医薬品組成物とした後使用されるが、そ
のような医薬品組成物としては、例えば、錠剤、カプセ
ル剤、顆粒剤、注射剤、貼付剤、座剤等をあげることが
できる。
The thiazino[6,5-b]indolizine derivatives represented by the general formula (I) of the present invention exhibit antiallergic, antiinflammatory, and analgesic effects, and are useful as pharmaceuticals. When the compound of general formula (I) of the present invention is used for actual treatment, it is used after being made into various pharmaceutical compositions, and such pharmaceutical compositions include, for example, tablets, capsules, granules, Examples include injections, patches, and suppositories.

【0016】本発明の一般式(I)で表されるチアジノ
〔6,5−b〕インドリジン誘導体を含有する医薬品組
成物を治療に用いる場合、その投与量は疾患の程度、患
者の性、年齢、体重等により調整されるが、経口投与で
は概ね成人1日当たり、5mg〜5000mg、非経口
投与では1日当たり、1mg〜1000mgの範囲で投
与することができる。
When the pharmaceutical composition containing the thiazino[6,5-b]indolizine derivative represented by the general formula (I) of the present invention is used for treatment, the dosage depends on the degree of the disease, the sex of the patient, Although adjusted depending on age, body weight, etc., it can be administered in the range of 5 mg to 5000 mg per day for adults for oral administration, and 1 mg to 1000 mg per day for parenteral administration.

【0017】[0017]

【実施例】本発明の内容を以下の実施例でさらに詳細に
説明する。なお、各実施例中の化合物の融点はすべて未
補正である。 実施例  1 エチル  3−アリル−8−エチル−4−オキソ−2−
チオキソ−2H−2,3−ジヒドロ〔1,3〕チアジノ
〔6,5−b〕インドリジン−10−カルボキシラート
(化合物1)
EXAMPLES The contents of the present invention will be explained in more detail in the following examples. Note that all melting points of compounds in each example are uncorrected. Example 1 Ethyl 3-allyl-8-ethyl-4-oxo-2-
Thioxo-2H-2,3-dihydro[1,3]thiazino[6,5-b]indolizine-10-carboxylate (compound 1)

【0018】ジエチル  2−(エトキシカルボニルエ
チルチオ)−7−エチルインドリジン−1,3−ジカル
ボキシラート0.42gのN,N−ジメチルホルムアミ
ド溶液2mlにt−ブトキシカリウム0.23gを加え
、よくかきまぜた。この反応液を60〜70℃の水浴上
に15分間加熱した後、発生したアクリル酸エチルをロ
ータリーエバポレーターを用いてできる限り除去した。 これにアリルイソチオシアネート0.12gを加え、こ
の反応液をさらに3時間水浴上に放置し反応させた。こ
の反応液を室温まで冷やした後、希塩酸で中和し反応生
成物を析出させた。ろ別によって分離したこの粗生成物
をクロロホルム30mlに溶解し、このクロロホルム溶
液を液相分離濾紙を通すことにより脱水後、濃縮した。 この残渣をクロロホルムを溶媒とし、アルミナカラムに
よって分離し、標題化合物0.22gを得た。
To 2 ml of a solution of 0.42 g of diethyl 2-(ethoxycarbonylethylthio)-7-ethylindolizine-1,3-dicarboxylate in N,N-dimethylformamide was added 0.23 g of potassium t-butoxy, and the mixture was well mixed. Stirred. After heating this reaction solution on a water bath at 60 to 70°C for 15 minutes, as much of the generated ethyl acrylate as possible was removed using a rotary evaporator. To this was added 0.12 g of allyl isothiocyanate, and the reaction solution was left on a water bath for further 3 hours to react. After cooling this reaction solution to room temperature, it was neutralized with dilute hydrochloric acid to precipitate a reaction product. The crude product separated by filtration was dissolved in 30 ml of chloroform, and the chloroform solution was dehydrated by passing through a liquid phase separation filter paper and then concentrated. This residue was separated using an alumina column using chloroform as a solvent to obtain 0.22 g of the title compound.

【0019】融  点:  147〜149℃IR(K
Br):  ν(CO)1691,1655cm−1   NMR(CDCl3) δ:1.32(t,3H),1.44(t,3H),2
.80(q,2H),4.38(q,2H),5.0〜
5.5(m.4H),5.6〜6.4(m,1H),6
.92(dd,1H),8.07(br−s,1H),
9.53(d,1H) 元素分析値:(C18H18N2O3S2として)測定
値  C%57.92,H%5.05,  N%7.4
0 理論値  C%57.73,H%4.85,  N%7
.48
Melting point: 147-149°C IR (K
Br): ν (CO) 1691, 1655 cm-1 NMR (CDCl3) δ: 1.32 (t, 3H), 1.44 (t, 3H), 2
.. 80 (q, 2H), 4.38 (q, 2H), 5.0 ~
5.5 (m.4H), 5.6-6.4 (m, 1H), 6
.. 92 (dd, 1H), 8.07 (br-s, 1H),
9.53 (d, 1H) Elemental analysis value: (as C18H18N2O3S2) Measured value C%57.92, H%5.05, N%7.4
0 Theoretical value C%57.73, H%4.85, N%7
.. 48

【0020】実施例  2 エチル  3プロピル−8−メチル−2,4−ジオキソ
−2H−2,3−ジヒドロ〔1,3〕チアジノ〔6,5
−b〕インドリジン−10−カルボキシラート(化合物
2)
Example 2 Ethyl 3propyl-8-methyl-2,4-dioxo-2H-2,3-dihydro[1,3]thiazino[6,5
-b] Indolizine-10-carboxylate (Compound 2)

【0021】ジエチル  2−(エトキシカルボニルエ
チルチオ)−7−メチルインドリジン−1,3−ジカル
ボキシラート0.41gのN,N−ジメチルホルムアミ
ド溶液2mlにt−ブトキシカリウム0.23gを加え
、よくかきまぜた。この反応液を60〜70℃の水浴上
に15分間加熱した後、発生したアクリル酸エチルをロ
ータリーエバポレーターを用いてできる限り除去した。 これにプロピルイソシアネート0.1gを加え、この反
応液をさらに3時間水浴上に放置し、反応させた。この
反応液を室温まで冷やした後、希塩酸で中和し反応生成
物を析出させた。ろ別によって分離したこの粗生成物を
クロロホルム30mlに溶解し、このクロロホルム溶液
を液相分離濾紙を通すことにより脱水後、濃縮した。こ
の残渣をクロロホルムを溶媒とし、アルミナカラムによ
って分離し、標題化合物0.23gを得た。
Add 0.23 g of potassium t-butoxy to 2 ml of a solution of 0.41 g of diethyl 2-(ethoxycarbonylethylthio)-7-methylindolizine-1,3-dicarboxylate in N,N-dimethylformamide, and mix well. Stirred. After heating this reaction solution on a water bath at 60 to 70°C for 15 minutes, as much of the generated ethyl acrylate as possible was removed using a rotary evaporator. 0.1 g of propyl isocyanate was added to this, and the reaction solution was further left on a water bath for 3 hours to react. After cooling this reaction solution to room temperature, it was neutralized with dilute hydrochloric acid to precipitate a reaction product. The crude product separated by filtration was dissolved in 30 ml of chloroform, and the chloroform solution was dehydrated by passing through a liquid phase separation filter paper and then concentrated. This residue was separated using an alumina column using chloroform as a solvent to obtain 0.23 g of the title compound.

【0022】融  点:  159〜161℃IR(K
Br):  ν(CO)1684,1660cm−1   NMR(CDCl3) δ:0.96(t,3H),1.3〜2.1(m,2H
),1.43(t,3H),2.47(s,3H),4
.03(q.2H),4.37(q,2H),6.84
(dd,1H),8.03(br−s,1H),9.5
6(d,1H)元素分析値:(C17H18N2O4S
として) 測定値  C%59.08,H%5.23,  N%7
.86 理論値  C%58.94,H%5.24,  N%8
.09
Melting point: 159-161°C IR (K
Br): ν (CO) 1684, 1660 cm-1 NMR (CDCl3) δ: 0.96 (t, 3H), 1.3-2.1 (m, 2H
), 1.43 (t, 3H), 2.47 (s, 3H), 4
.. 03 (q.2H), 4.37 (q, 2H), 6.84
(dd, 1H), 8.03 (br-s, 1H), 9.5
6(d,1H) elemental analysis value: (C17H18N2O4S
) Measured values C%59.08, H%5.23, N%7
.. 86 Theoretical value C%58.94, H%5.24, N%8
.. 09

【0023】実施例  3 相当する誘導体を用いて実施例1または2と同様に操作
して以下の化合物を得た。
Example 3 The following compound was obtained in the same manner as in Example 1 or 2 using the corresponding derivative.

【0024】[0024]

【化5】[C5]

【0025】[0025]

【表1】[Table 1]

【0026】[0026]

【表2】[Table 2]

【0027】[0027]

【表3】[Table 3]

【0028】[0028]

【表4】[Table 4]

【0029】[0029]

【表5】[Table 5]

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】  一般式 【化1】 (式中のR1およびR2は同じでも異なっていてもよく
、それぞれ水素原子または低級アルキル基であり、R3
は低級アルキル基であり、Rは低級アルキル基、低級ア
ルケニル基またはフェニル基であり、Zは酸素原子また
は硫黄原子である)で表されるチアジノ〔6,5−b〕
インドリジン誘導体。
Claim 1: General formula:
is a lower alkyl group, R is a lower alkyl group, lower alkenyl group, or phenyl group, and Z is an oxygen atom or a sulfur atom) Thiazino[6,5-b]
Indolizine derivatives.
JP11419991A 1991-02-25 1991-02-25 Thiazino(6,5-b)indolizine derivative Pending JPH04270291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11419991A JPH04270291A (en) 1991-02-25 1991-02-25 Thiazino(6,5-b)indolizine derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11419991A JPH04270291A (en) 1991-02-25 1991-02-25 Thiazino(6,5-b)indolizine derivative

Publications (1)

Publication Number Publication Date
JPH04270291A true JPH04270291A (en) 1992-09-25

Family

ID=14631689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11419991A Pending JPH04270291A (en) 1991-02-25 1991-02-25 Thiazino(6,5-b)indolizine derivative

Country Status (1)

Country Link
JP (1) JPH04270291A (en)

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