CN1087628A - 1-未取代的3-氨基吡咯的制备方法 - Google Patents

1-未取代的3-氨基吡咯的制备方法 Download PDF

Info

Publication number
CN1087628A
CN1087628A CN93116710A CN93116710A CN1087628A CN 1087628 A CN1087628 A CN 1087628A CN 93116710 A CN93116710 A CN 93116710A CN 93116710 A CN93116710 A CN 93116710A CN 1087628 A CN1087628 A CN 1087628A
Authority
CN
China
Prior art keywords
ion
formula
unsubstituted
aryl
alkali
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
CN93116710A
Other languages
English (en)
Inventor
A·罗尔夫斯
K·昂弗费思
J·李舍
G·浮士特
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.)
AWD Pharma GmbH and Co KG
Original Assignee
Arzneimittelwerk Dresden GmbH
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 Arzneimittelwerk Dresden GmbH filed Critical Arzneimittelwerk Dresden GmbH
Publication of CN1087628A publication Critical patent/CN1087628A/zh
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D275/00Heterocyclic compounds containing 1,2-thiazole or hydrogenated 1,2-thiazole rings
    • C07D275/02Heterocyclic compounds containing 1,2-thiazole or hydrogenated 1,2-thiazole rings not condensed with other rings
    • C07D275/03Heterocyclic compounds containing 1,2-thiazole or hydrogenated 1,2-thiazole rings not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D207/00Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/30Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
    • C07D207/34Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D401/00Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/04Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Steroid Compounds (AREA)
  • Pyrrole Compounds (AREA)
  • Peptides Or Proteins (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Stereophonic System (AREA)
  • Thiazole And Isothizaole Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

本发明涉及制备通式I的1-未取代的3-氨基 吡咯的方法,其中包括,在碱存在下,将通式II的1, 2-噻唑鎓盐有利地转化成通式I化合物。这类化合 物的重要性在于具有中枢神经系统活性,尤其是抗惊 厥活性,可作药物使用。

Description

本发明涉及制备1-未取代的3-氨基吡咯的方法。所述化合物的重要性在于具有中枢神经系统活性,尤其是抗惊厥活性,可用作药物。本发明可用于化学和制药工业。
已经知道,3-吗啉代吡咯-2-羧酸酯可以从3-氨基硫代丙烯酰胺和甘氨酸酯制备(A.Knoll,J.Liebscher  Khim.Geterotsikl.Soedin.1985,628)。具有药理活性尤其是中枢神经系统活性的3-氨基吡咯一般可以从开链的前体用不同的方法制备(EP-OS-0431371)。此外,在4-位带有氨基羰基(DE  2605419)或羰基(US  4198502)的3-氨基吡咯已被分类为对中枢神经系统有效的物质。已知方法的缺点是,它们或者需要多步反应或者产生危害健康的副产物如硫醇。已经知道,N-取代的1,2-噻唑鎓盐可以通过环转化反应形成噻吩(C.W.Bird,G.W.H.Cheeseman  in  Comprehensive  Heterocyclic  Chemistry,Pergamon  Press,Oxford,New  York,Toronto,Sydney,Paris,Frankfurt,1984,Vol.4,pl44)。最后,还知道,异噻唑鎓盐在碱存在下容易裂解2-位取代基(S.Rajappa,G  B.Advani,R.Sreenivasan  Indian  J.Chem.V.15(1977)848)。
本发明的任务是提供一种新的制备具有药理作用的1-未取代的3-氨基吡咯的方法,该方法可一步制得所述化合物,而不形成危害健康的副产物。
按照本发明,本发明的任务通过下法完成,其特征在于,在碱存在下,将通式Ⅱ的1,2-噻唑鎓盐有利地环转化成通式Ⅰ的1-未取代的3-氨基吡咯,
Figure 931167108_IMG5
式中R1表示氢、烷基、链烯基、芳基、杂芳基、硝基、氰基、酰基、烷氧羰基、氨基羰基、芳氧羰基或磺酰基;R2和R3相同或不同,表示氢、芳基或烷基,它们可以被杂原子取代,R2和R3也可以一起形成亚烷基桥,该亚烷基可以含有杂原子如氮、氧或硫或者说可以被这些杂原子所取代;R4和R5相同或不同,表示氢、烷氧羰基、氨基羰基或氨基硫代羰基、未取代的或取代的烷基或芳基或杂芳基;
Figure 931167108_IMG6
式中R1、R2、R3或R2/R3,R4和R5具有前述意义,其中X
Figure 931167108_IMG7
表示酸根阴离子,例如囟离子、高氯酸根离子、四氟硼酸根离子、硫酸氢根离子、硫酸根离子、氢氧根离子或三氟甲磺酸根离子(Triflat)。
作为碱,可以使用例如叔胺、碱性N-杂芳族化合物、碱金属氢化物、碱金属氨基化物、碱金属碳酸盐、碱金属氢氧化物或离子交换剂。本发明的方法用一步反应合成通式Ⅰ的1-未取代的3-氨基吡咯,而不形成危害健康的副产物如硫化氢或硫醇。制得的化合物具有很高的抗惊厥活性。
令人惊奇的是,在转化过程中,没有观察到通式Ⅱ的1,2-噻唑鎓盐的2-位取代基的裂解。本发明的方法描述了一种新的基本的合成吡咯框架的方法,即通过1,2-噻唑的环转化形成所述杂环。通过环转化反应,也可以制备不能用迄今为止已知的方法制备的吡咯类化合物。本发明方法的收率高,产物单一,通常可通过简单地重结晶来精制。
下面通过一些具体实施例更详细地解释本发明。
表1:通式Ⅰ的1-未取代的3-氨基吡咯
Figure 931167108_IMG8
Figure 931167108_IMG9
制备通式Ⅰ的1-未取代的3-氨基吡咯的一般操作规程:
将0.01mol通式Ⅱ的1,2-噻唑鎓盐溶于40-50ml乙醇、甲醇、乙腈或氯仿中,加入稍过量的叔胺、N-杂芳族化合物、碱金属氢氧化物或碱金属碳酸盐,加热回流5分钟。滤掉通常在热状态下已沉淀出的大部分游离硫。将母液在0℃冷却,大约2-3小时后,吸滤出沉淀出的通式Ⅰ的3-氨基吡咯结晶,用适当的溶剂重结晶。通过浓缩母液、用水再沉淀或对母液进行柱层析纯化,可得较表1所列数值更高的收率。
在1,2-噻唑鎓盐与碱金属氢氧化物反应时,用二甲基甲酰胺、二噁烷或四氢呋喃作溶剂。然后将反应混合物倒到冰水中,过滤,和重结晶。
制备1-未取代的3-氨基吡咯的代表性操作规程:
实施例1
4-(4-氯苯基)-3-(吗啉-1-基)吡咯-2-羧酸正丁酯
将0.01mol  4-(4-氯苯基)-5-(吗啉-4-基)-N-丁氧羰基甲基-1,2-噻唑鎓溴化物溶于50ml乙醇中,滴加在5ml乙醇中的0.012mol三乙胺。将溶液在搅拌下加热至沸。趁热滤出析出的硫,将母液与10ml热水混合。将溶液在0℃冷却,吸滤出沉淀出的结晶物,通过溶于二氯甲烷中除去附着的硫。将二氯甲烷溶液浓缩至干,残留物用甲醇处理,吸滤出沉淀出的结晶,然后干燥。
收率2.28g(理论量的63%)
无素分析(计算值/实验值):
C:62.89/62.62  H:6.39/6.44  N:7.72/7.80
Cl:9.77/9.78
实施例2
4-(4-氯苯基)-3-(4-甲基哌嗪-1-基)吡咯-2-羧酸甲酯
将0.01ml  4-(4-氯苯基)-5-(4-甲基哌嗪-1-基)-N-甲氧羰基甲基-1,2-噻唑鎓氢氧化物在50ml甲醇中加热回流5分钟。将溶液在0℃冷却2小时后吸滤出沉淀出的结晶,用甲醇重结晶。
收率:2.27g(理论量的68%)
元素分析(计算值/实测值)
C:61.16/61.39  H:6.04/5.90  N:12.59/12.49
Cl:10.62/10.61
实施例3
3-(吗啉-4-基)-4-(吡啶-4-基)吡咯-2-羧酯甲酯
将0.01mol  5-(吗啉-4-基)-4-(吡啶-4-基)-N-甲氧羰基甲基-1,2-噻唑鎓碘化物在40ml1N氢氧化钠乙醇溶液中加热煮沸2分钟。将溶液冷却,吸滤出沉淀出的结晶,然后,通过柱层析除去附着的硫并纯化。
收率:2g(理论量的69.5%)
元素分析(计算值/实测值):
C:62.70/62.89  H:5.96/6.00  N:14.63/14.67
实施例4
3-苄氨基-4-(4-氯苯基)吡咯-2-羧酸乙酯
将0.01mol  5-苄氨基-4-(4-氯苯基)-N-乙氧羰基甲基-1,2-噻唑鎓溴化物在40ml  0.01N碳酸钾的含水乙醇溶液中回流下煮沸5分钟。在0℃冷却后,吸滤出结晶物,用乙醇重结晶。
收率:2.97g(理论量的83.6%)
元素分析(计算值/实验值):
C:67.69/67.54  H:5.40/5.38  N:7.90/8.00
Cl:9.99/10.13。
通式Ⅰ的1-未取代的3-氨基吡咯的抗惊厥活性:
最大电痉挛(小白鼠)
3-(吗啉-4-基)-4-苯基吡咯-2-羧酸甲酯:
剂量:1.10-3mol/kg腹腔注射=100%痉挛抑制。
4-(4-氯苯基)-3-(硫代吗啉-4-基)吡咯-2-羧酸甲酯:
剂量:5.10-4mol/kg腹腔注射=80%痉挛抑制。

Claims (2)

1、制备通式Ⅰ的1-未取代的3-氨基吡咯的方法,
Figure 931167108_IMG2
式中R1表示氢、烷基、链烯基、芳基、杂芳基、硝基、氰基、酰基、烷氧羰基、氨基羰基、芳氧羰基或磺酰基;R2和R3相同或不同,表示氢、芳基或烷基,它们可以被杂原子取代,R2和R3也可以一起形成亚烷基桥,该亚烷基可以含有杂原子如氮、氧或硫或者说可以被这些杂原子所取代;R4和R5相同或不同,表示氢、烷氧羰基、氨基羰基或氨基硫代羰基、未取代的或取代的烷基或芳基或杂芳基;所述方法的特征在于,在碱存在下,将通式Ⅱ的1,2-噻唑鎓盐有利地转化成式Ⅰ化合物,
Figure 931167108_IMG3
式中R1、R2、R3或R2/R3,R4和R5具有前述意义,其中X 表示酸根阴离子,如卤离子、高氯酸根离子、四氟硼酸根离子、硫酸氢根离子、硫酸根离子、氢氧根离子或三氟甲磺酸根离子。
2、根据权利要求1的方法,其特征在于,作为碱,使用的是例如叔胺、碱性N-杂芳族化合物、碱金属氢化物、碱金属氨基化物、碱金属碳酸盐、碱金属氢氧化物或离子交换剂。
CN93116710A 1992-08-20 1993-08-20 1-未取代的3-氨基吡咯的制备方法 Pending CN1087628A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4227479.6 1992-08-20
DE4227479A DE4227479A1 (de) 1992-08-20 1992-08-20 Verfahren zur Herstellung von 1-unsubstituierten 3-Aminopyrrolen

Publications (1)

Publication Number Publication Date
CN1087628A true CN1087628A (zh) 1994-06-08

Family

ID=6465898

Family Applications (1)

Application Number Title Priority Date Filing Date
CN93116710A Pending CN1087628A (zh) 1992-08-20 1993-08-20 1-未取代的3-氨基吡咯的制备方法

Country Status (12)

Country Link
US (1) US5414082A (zh)
EP (1) EP0583561B1 (zh)
JP (1) JPH06211784A (zh)
CN (1) CN1087628A (zh)
AT (1) ATE164573T1 (zh)
BG (1) BG98030A (zh)
CA (1) CA2104085A1 (zh)
CZ (1) CZ168793A3 (zh)
DE (2) DE4227479A1 (zh)
FI (1) FI933652A (zh)
PL (1) PL300155A1 (zh)
SK (1) SK88293A3 (zh)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4198502A (en) * 1973-08-22 1980-04-15 Gruppo Lepetit S.P.A. Aminopyrrole derivatives
GB1492663A (en) * 1975-02-20 1977-11-23 Lepetit Spa 4-amino-3-pyrrole carboxamides
DD298917A5 (de) * 1989-11-17 1992-03-19 Arzneimittelwerk Dresden Gmbh,De Verfahren zur herstellung von 2-substituierten 3-aminopyrrolen
DD298918A5 (de) * 1989-11-17 1992-03-19 Arzneimittelwerk Dresden Gmbh,De Verfahren zur herstellung von 3-aminopyrrolderivaten
DD298913A5 (de) * 1989-11-17 1992-03-19 Arzneimittelwerk Dresden Gmbh,De Verfahren zur herstellung von n-substituierten 3-aminopyrrolen
DD298914A5 (de) * 1989-11-17 1992-03-19 Arzneimittelwerk Dresden Gmbh,De Verfahren zur herstellung von substituierten 3-aminopyrrolen
DD298916A5 (de) * 1989-11-17 1992-03-19 Arzneimittelwerk Dresden Gmbh,De Verfahren zur herstellung von 3-aminopyrrolcarbonsaeurederivaten
DD298915A5 (de) * 1989-11-17 1992-03-19 Arzneimittelwerk Dresden Gmbh,De Verfahren zur herstellung von pharmakologisch wirksamen 3-aminopyrrolen
DD298912A5 (de) * 1989-11-17 1992-03-19 �������@������������@��k�� Verfahren zur herstellung von 3-aminopyrrolen

Also Published As

Publication number Publication date
PL300155A1 (en) 1994-04-05
ATE164573T1 (de) 1998-04-15
EP0583561A3 (en) 1994-07-06
EP0583561B1 (de) 1998-04-01
DE4227479A1 (de) 1994-02-24
CZ168793A3 (en) 1994-03-16
FI933652A (fi) 1994-02-21
EP0583561A2 (de) 1994-02-23
SK88293A3 (en) 1994-09-07
US5414082A (en) 1995-05-09
JPH06211784A (ja) 1994-08-02
CA2104085A1 (en) 1994-02-21
FI933652A0 (fi) 1993-08-19
DE59308331D1 (de) 1998-05-07
BG98030A (bg) 1994-04-29

Similar Documents

Publication Publication Date Title
EP0104342B1 (de) Triphenylimidazolyloxyalkansäuren und ihre Derivate, Verfahren zu ihrer Herstellung und diese enthaltende pharmazeutische Präparate
FI68820C (fi) Foerfarande foer framstaellning av terapeutiskt anvaendbara amnotiazoler
US4603204A (en) Theophylline derivatives
US3594380A (en) Isoquinolin-1(2h)-ones
WO2011028548A1 (en) Synthesis of a neurostimulative piperazine
DE2916140A1 (de) 1,3-diphenyl-2-iminoimidazolidine und 1,3-diphenyl-2-iminohexahydropyrimidine, verfahren zu ihrer herstellung und solche enthaltende arzneimittel
CH647519A5 (de) Bluthochdruck senkende amine.
US3634508A (en) Phenylacetylguanidines
EP0004561A2 (de) Harnstoff- und Amidoverbindungen, deren Herstellung, pharmazeutische Präparate enthaltend diese Verbindungen und deren Verwendung zur Zubereitung von pharmazeutischen Präparaten
US3822262A (en) Phenyl acetylimino-imidazolines and-hexahydropyrimidines
CN1087628A (zh) 1-未取代的3-氨基吡咯的制备方法
SU955860A3 (ru) Способ получени производных 3-амино-1-бензоксепин-5/2н/-она или их солей
EP0183190B1 (de) Benzamide und Salze
KR101316653B1 (ko) 헤테로고리 화합물의 제조방법
IL31915A (en) Thiazolines, their preparation and pharmaceutical preparations containing them
EA000535B1 (ru) Новые противосудорожные i-ar(алк)ил-имидазолин-2-оны, содержащие в 4-положении двузамещенный остаток амина, и способ их получения
EP0056970B1 (de) Basisch substituierte Anthranilsäuren, Verfahren zu ihrer Herstellung und ihre Verwendung
CH639656A5 (de) Stickstoffhaltige heterocyclische verbindungen und verfahren zu deren herstellung.
JPS6410512B2 (zh)
JP2520376B2 (ja) 新規な有機化合物
US4113877A (en) Substituted 2-aminomethylphenyl sulfamates
DE2517183A1 (de) Basisch substituierte 5-sulfamoyl- anthranilsaeurederivate und verfahren zu ihrer herstellung
EP0062844B1 (de) Substituierte Benzo(de)isochinoline, Verfahren zu ihrer Herstellung und ihre Verwendung als Arzneimittel
DE2905501A1 (de) Neue kondensierte, stickstoffhaltige heterocyclische verbindungen und verfahren zu deren herstellung
KR870000165B1 (ko) N-[2-[[[5-(디메틸아미노)-메틸-2-푸라닐]메틸]티오]에틸]-n'-메틸-2-니트로-1,1-에텐디아민의 제조방법

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
AD01 Patent right deemed abandoned
C20 Patent right or utility model deemed to be abandoned or is abandoned