The present invention relates to the process for a preparation of ACE inhibitor perindopril starting from the stereospecific amino acid N-[(S)-carbethoxy-1-butyl](S)-alanine, which is protected by trimethylsilyl group and converted to reactive acid chloride using thionylchloride or its complex with 1-H-benzotriazole (1:1), which reacts with (2S, 3aS, 7aS)-octahydroindole-2-carboxylic acid with a protected carboxyl group. This invention relates also to a new crystalline form of perindopril and to a new amorphous form of perindopril.
本发明涉及一种从立体特异性
氨基酸N-[(S)-羧甲氧基-1-丁基](S)-丙
氨酸出发制备ACE
抑制剂贝利普利的方法,该
氨基酸通过三甲基
硅基团保护,并使用亚砜
氯化物或其与1-H-苯并三唑的复合物(1:1)转化为反应性酸
氯化物,再与保护羧基的(2S, 3aS, 7aS)-辛氢
吲哚-2-羧酸反应。本发明还涉及贝利普利的一种新结晶形式和一种新非晶形式。