申请人:Ciba-Geigy Corporation
公开号:US05321027A1
公开(公告)日:1994-06-14
N-Benzoyl-N'-(2-phenylethyl)-piperazines of formula I ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 have the meanings as defined in the specification, and salts thereof, have analgesic properties and can be used as analgesic active ingredients in medicaments. They are prepared, for example, as follows: a compound of formula II ##STR2## wherein X.sub.1 is carboxy or reactive functionally modified carboxy, or a salt thereof, is reacted with a compound of formula III ##STR3## wherein X.sub.2 is hydrogen.
N-苯甲酰-N'-(2-苯乙基)-哌嗪的化学式为I,其中R₁、R₂、R₃、R₄和R₅的含义如规范中定义,以及其盐具有镇痛特性,可用作药物中的镇痛活性成分。它们可以按照以下方法制备:化合物II的化学式为,其中X₁为羧基或反应性功能修饰的羧基或其盐,与化合物III的化学式为,其中X₂为氢原子,反应。