申请人:——
公开号:US20040192613A1
公开(公告)日:2004-09-30
Methods and materials for preparing quinapril, its pharmaceutically acceptable salts, including quinapril hydrochloride, are disclosed. The method includes reacting (2S,4S)-2-(4-methyl-2,5-dioxo-oxazolidin-3-yl)-4-phenyl-butyric acid ethyl ester with (3S)-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid tert-butyl ester to yield quinapril tert-butyl ester, which is subsequently reacted with an acid to yield quinapril or an acid addition salt of quinapril.
制备喹那普利及其可药用盐的方法和材料被公开,包括喹那普利盐酸盐。该方法包括将(2S,4S)-2-(4-甲基-2,5-二氧代恶唑烷-3-基)-4-苯基丁酸乙酯与(3S)-1,2,3,4-四氢异喹啉-3-羧酸叔丁酯反应,得到喹那普利叔丁酯,随后与酸反应,得到喹那普利或喹那普利的酸加成盐。