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CN1835965A - 合成培哚普利及其药学可接受盐的新方法 - Google Patents

合成培哚普利及其药学可接受盐的新方法 Download PDF

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CN1835965A
CN1835965A CNA2004800235321A CN200480023532A CN1835965A CN 1835965 A CN1835965 A CN 1835965A CN A2004800235321 A CNA2004800235321 A CN A2004800235321A CN 200480023532 A CN200480023532 A CN 200480023532A CN 1835965 A CN1835965 A CN 1835965A
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T·迪比费
J-P·勒库夫
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Abstract

本发明公开合成式(I)培哚普利化合物及其药学可接受盐的方法。

Description

合成培哚普利及其药学可接受盐的新方法
本发明涉及合成下式(I)培哚普利及其药学可接受盐的方法:
Figure A20048002353200041
培哚普利及其药学可接受的盐、更具体地讲是其叔丁基胺盐具有重要的药理学性质。
它们的主要性质是抑制血管紧张素I转化酶(或激肽酶II),因此,一方面它们能够阻止十肽血管紧张素I转化成八肽血管紧张素II(血管收缩剂),另一方面它们能够防止缓激肽(血管舒张药)降解成失活肽。
这两种作用有助于培哚普利在心血管疾病、特别是动脉高血压和心脏供血不足中发挥有益的作用。
欧洲专利EP 0 049 658中描述了培哚普利、其制备方法及其在治疗中的用途。
鉴于这种化合物的药学价值,重要的是能够采用易转换成工业规模的、竞争力强的合成方法,使用价格合理的原料以高产率和极佳纯度获得培哚普利。
专利EP 0 308 341描述了通过使(2S,3aS,7aS)-八氢吲哚-2-甲酸苄酯与N-[(S)-1-羧基丁基]-(S)-丙氨酸乙酯偶合,接着采用催化氢化反应使该杂环的羧基去保护,从而合成出培哚普利的方法。
本申请人现在已研制一种新的合成培哚普利的方法。
更具体地讲,本发明涉及一种合成培哚普利及其药学可接受盐的方法,其特征在于在碱存在下,使下式(II)化合物:
Figure A20048002353200051
式中R1代表苄基或直链或支链(C1-C6)烷基基团,与具有S构型的下式(III)化合物进行反应:
Figure A20048002353200052
式中X代表卤素原子,而R2代表氨基官能团的保护基团,在氨基官能团去保护后得到下式(IV)化合物:
Figure A20048002353200053
式中R1如前面所定义,然后在氢气压力下,在披铂炭的存在下,使式(IV)化合物与2-氧代-戊酸乙酯反应得到下式(V)化合物:
Figure A20048002353200054
式中R1如前面所定义,它在去保护后得到式(I)化合物。
在本发明可使用的氨基官能团保护基团中,作为非限制性实例可以列举叔-丁氧基羰基、苄氧基羰基基团和苄基。
优选R1代表苄基。在这种情况下,氨基官能团保护基团优选地是叔-丁氧基羰基。
在式(II)与(III)化合物反应可使用的碱中,作为非限制性实例可以列举有机胺,例如三乙胺、吡啶、N-甲基吗啉或二异丙基乙胺,及无机碱,例如NaOH、KOH、Na2CO3、K2CO3、NaHCO3或KHCO3
优选地在乙酸乙酯、乙酸中或在醇溶剂中,在大气压与20-60℃温度下进行式(IV)化合物与2-氧代戊酸乙酯的反应。
实施例:(2S,3aS,7aS)-1-{(2S)-2-[(1S)-1-(乙氧基羰基)-丁基氨基]-丙酰基}-八氢-1H-吲哚-2-甲酸叔丁基胺盐
步骤A:(2S)-1-{(2S)-2-[(叔-丁氧基羰基)-氨基]-丙酰基}-2,3,4,5,6,7-六氢-1H-吲哚-2-甲酸苄酯
向一个反应器中装入200g(2S)-2,3,4,5,6,7-六氢-1H-吲哚-2-甲酸苄酯、1.5升二氯甲烷,然后将反应混合物的温度调到0℃,再添加107ml三乙胺,然后添加162g(2S)-2-[(叔-丁氧基羰基)-氨基]-丙酰氯。然后将反应混合物的温度调到室温。在这个温度下搅拌1h后,先用水、再用乙酸水溶液洗涤该混合物。由此得到的(2S)-1-{(2S)-2-[(叔-丁氧基羰基)-氨基]-丙酰基}-2,3,4,5,6,7-六氢-1H-吲哚-2-甲酸苄酯溶液可原样用于后续步骤。
步骤B:(2S)-1-{(2S)-2-氨基丙酰基}-2,3,4,5,6,7-六氢-1H-吲哚-2-甲酸苄酯
向一个反应器中装入在前面步骤得到的溶液,然后添加133g三氟乙酸。在室温下搅拌1小时30分钟后,先用水、再用饱和碳酸氢钠水溶液洗涤该混合物,再蒸去这些溶剂,得到(2S)-1-{(2S)-2-氨基丙酰基}-2,3,4,5,6,7-六氢-1H-吲哚-2-甲酸苄酯。
步骤C:(2S,3aS,7aS)-1-{(2S)-2-[(1S)-1-(乙氧基羰基)-丁基氨基]-丙酰基}-八氢-1H-吲哚-2-甲酸苄酯
向一个氢化器中装入200g在前面步骤得到的化合物和88g 2-氧代戊酸乙酯在乙酸乙酯中的溶液,然后装入5g 10%Pt/C。在大气压与40℃下氢化直到吸收理论量的氢。
过滤除去催化剂,然后冷却到0-5℃,经过滤回收得到的固体,洗涤滤饼,再干燥直至恒重。
由此得到(2S,3aS,7aS)-1-{(2S)-2-[(1S)-1-(乙氧基羰基)-丁基氨基]-丙酰基}-八氢-1H-吲哚-2-甲酸苄酯,其产率是85%。
步骤D:(2S,3aS,7aS)-1-{(2S)-2-[(1S)-1-(乙氧基羰基)-丁基氨基]-丙酰基}-八氢-1H-吲哚-2-甲酸
向一个氢化器中装入200g在前面步骤得到的化合物在乙醇中的溶液,然后装入5g 10%Pd/C。在大气压与30℃下氢化直到吸收理论量的氢。
过滤除去催化剂,再蒸去溶剂。
由此得到(2S,3aS,7aS)-1-{(2S)-2-[(1S)-1-(乙氧基羰基)-丁基氨基]-丙酰基}-八氢-1H-吲哚-2-甲酸,其产率是85%。
步骤E:(2S,3aS,7aS)-1-{(2S)-2-[(1S)-1-(乙氧基羰基)-丁基氨基]-丙酰基}-八氢-1H-吲哚-2-甲酸叔丁基胺盐
将在前面步骤得到的化合物(200g)溶于2.8升乙腈中,然后添加40g叔-丁胺和0.4升乙酸乙酯。
得到的悬浮液升温回流直到完全溶解,然后趁热过滤得到的溶液,再在搅拌下冷却直到温度15-20℃。得到的沉淀经过滤后,再用乙腈再制浆,干燥,在乙酸乙酯中重结晶,得到期望产物,其产率是95%,对映异构体纯度是99%。

Claims (8)

1.合成下式(I)化合物及其药学可接受盐的方法:
Figure A2004800235320002C1
其特征在于在碱存在下,使下式(II)化合物:
式中R1代表苄基或直链或支链(C1-C6)烷基基团,与具有S构型的下式(III)化合物进行反应:
式中X代表卤素原子,而R2代表氨基官能团保护基团,在氨基官能团去保护后得到下式(IV)化合物:
Figure A2004800235320002C4
式中R1如前面所定义,
在披铂炭存在下,在氢气压力下,使式(IV)化合物与2-氧代-戊酸乙酯反应得到下式(V)化合物:
式中R1如前面所定义,它在去保护后得到式(I)化合物。
2.根据权利要求1所述的合成方法,其特征在于氨基官能团保护基团是叔-丁氧基羰基、苄氧基羰基基团或苄基。
3.根据权利要求2所述的合成方法,其特征在于R1代表苄基,而氨基官能团保护基团是叔-丁氧基羰基。
4.根据权利要求1-3中任一项所述的合成方法,其特征在于式(II)与(III)化合物反应使用的碱是选自三乙胺、吡啶、N-甲基吗啉和二异丙基乙胺的有机胺,或无机碱,例如NaOH、KOH、Na2CO3、K2CO3、NaHCO3或KHCO3
5.根据权利要求1-4中任一项所述的合成方法,其特征在于在乙酸乙酯、乙酸中或在醇溶剂中进行式(IV)化合物与2-氧代戊酸乙酯的反应。
6.根据权利要求1-5中任一项所述的合成方法,其特征在于在大气压下进行式(IV)化合物与2-氧代戊酸乙酯的反应。
7.根据权利要求1-6中任一项所述的合成方法,其特征在于在20-60℃温度下进行式(IV)化合物与2-氧代戊酸乙酯的反应。
8.根据权利要求1-7中任一项所述的合成方法,其中培哚普利呈叔丁基胺盐形式。
CNB2004800235321A 2003-08-29 2004-08-27 合成培哚普利及其药学可接受盐的新方法 Expired - Fee Related CN100374459C (zh)

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CN113980096A (zh) * 2021-11-29 2022-01-28 绍兴市上虞区武汉理工大学高等研究院 一种吨级培哚普利叔丁胺的合成工艺方法

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EP1380590B1 (fr) * 2003-08-29 2006-09-06 Les Laboratoires Servier Nouveau procédé de synthèse du perindopril et de ses sels pharmaceutiquement acceptables
DK1380591T3 (da) * 2003-08-29 2006-01-23 Servier Lab Fremgangsmåde til syntese af perindopril og farmaceutiske acceptable salte heraf
DK1675827T3 (da) * 2003-10-21 2010-04-19 Servier Lab Ny fremgangsmåde til fremstilling af krystallint perindopril erbumin
SI21704A (en) * 2004-01-14 2005-08-31 Lek Farmacevtska Druzba Dd New crystal form of perindopril, procedure of its preparation, pharmaceutical preparations containing this form and their application in treatment of hypertensia
ATE409036T1 (de) 2005-01-06 2008-10-15 Ipca Lab Ltd Verfahren zur synthese von (2s,3as,7as)-1-(s)- alanyl-octahydro-1h-2-carbonsäurederivaten und verwendung in der synthese von perindopril
WO2016178591A2 (en) 2015-05-05 2016-11-10 Gene Predit, Sa Genetic markers and treatment of male obesity
PH12018502155B1 (en) 2016-04-20 2024-03-27 Servier Lab Pharmaceutical composition comprising a beta blocker, a converting enzyme inhibitor and an antihypertensive or an nsaid

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DE60300106T2 (de) * 2003-03-12 2005-10-13 Les Laboratoires Servier Verfahren zur Synthese von (2S,3aS,7aS)-1-((S)-Alanyl)-octahydro-1H-indol-2-carbonsäurederivaten und Verwendung in der Synthese von Perindopril
DK1380591T3 (da) * 2003-08-29 2006-01-23 Servier Lab Fremgangsmåde til syntese af perindopril og farmaceutiske acceptable salte heraf

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* Cited by examiner, † Cited by third party
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CN113980096A (zh) * 2021-11-29 2022-01-28 绍兴市上虞区武汉理工大学高等研究院 一种吨级培哚普利叔丁胺的合成工艺方法

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EP1371659A1 (fr) 2003-12-17
ATE306496T1 (de) 2005-10-15
EA200600455A1 (ru) 2006-08-25
US20070088168A1 (en) 2007-04-19
SI1371659T1 (sl) 2006-02-28
AU2004270429A1 (en) 2005-03-17
JP2007536202A (ja) 2007-12-13
DK1371659T3 (da) 2005-11-21
EA008626B1 (ru) 2007-06-29
ZA200601426B (en) 2007-05-30
WO2005023843A1 (fr) 2005-03-17
DE60301820D1 (de) 2006-02-23
AR045517A1 (es) 2005-11-02
US7223872B2 (en) 2007-05-29
PL379627A1 (pl) 2006-10-30
HK1097852A1 (en) 2007-07-06
NZ545338A (en) 2009-03-31
AU2004270429B2 (en) 2007-05-24
MY136288A (en) 2008-09-30
PL211507B1 (pl) 2012-05-31
ES2250853T3 (es) 2006-04-16
EP1371659B1 (fr) 2005-10-12

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