申请人:Pharmacia & Upjohn Company
公开号:US05773610A1
公开(公告)日:1998-06-30
This invention relates to processes for the synthesis of various optically active amino pyrrolidinyl stereoisomers, or enantiomers, that may be attached to quinolonecarboxylic acids or naphthyridones. Processes and essential intermediates are disclosed and claimed for the synthesis of compounds represented by the structure shown in FIG. BG.sub.4-1, where R.sup.50, R.sup.6 and R.sup.9 are defined independently and are H, -(C.sub.1 -C.sub.8)alkyl, -(C.sub.3 -C.sub.8)cycloalkyl, -(C.sub.1 -C.sub.8)alkyl-(C.sub.3 -C.sub.8)cycloalkyl, -(C.sub.6 -C.sub.12 aryl), -(C.sub.1 -C.sub.8)alkyl-(C.sub.6 -C.sub.12 aryl), or the aryl or alkyl is substituted with one to three of the following groups, (C.sub.6 -C.sub.12 aryl), (C.sub.1 -C.sub.3)alkyl, (C.sub.1 -C.sub.3)alkoxy, halogen, trifluoromethyl; where R.sup.2 is -(C.sub.1 -C.sub.8)alkyl, -(C.sub.3 -C.sub.8)cycloalkyl, -(C.sub.1 -C.sub.8)alkyl-(C.sub.3 -C.sub.8)cycloalkyl, -(C.sub.6 -C.sub.12 aryl), -(C.sub.1 -C.sub.8)alkyl-(C.sub.6 -C.sub.12 aryl), or the aryl or alkyl is substituted with one to three of the following groups, -(C.sub.6 -C.sub.12 aryl), -(C.sub.1 -C.sub.3)alkyl,-(C.sub.1 -C.sub.3)alkoxy, halogen, trifluoromethyl; depending upon the starting materials used, compounds represented by the structure shown by FIG. BG.sub.4-1 may have one of either of the two stereochemical arrangements shown, or, if the starting materials are a racemic mixture, the reaction may produce a 1:1 ratio of the combination of products shown in FIG. BG.sub.4-1, i.e. a racemic mixture.
本发明涉及合成各种光学活性氨基吡咯烷基立体异构体或对喹啉羧酸或萘啉酮的合成过程。揭示和声明了用于合成由图BG.sub.4-1所示结构表示的化合物的过程和必要中间体,其中R.sup.50、R.sup.6和R.sup.9分别定义并且是H、-(C.sub.1-C.sub.8)烷基、-(C.sub.3-C.sub.8)环烷基、-(C.sub.1-C.sub.8)烷基-(C.sub.3-C.sub.8)环烷基、-(C.sub.6-C.sub.12芳基)、-(C.sub.1-C.sub.8)烷基-(C.sub.6-C.sub.12芳基),或芳基或烷基被以下一到三个基团取代:(C.sub.6-C.sub.12芳基)、(C.sub.1-C.sub.3)烷基、(C.sub.1-C.sub.3)烷氧基、卤素、三氟甲基;其中R.sup.2是-(C.sub.1-C.sub.8)烷基、-(C.sub.3-C.sub.8)环烷基、-(C.sub.1-C.sub.8)烷基-(C.sub.3-C.sub.8)环烷基、-(C.sub.6-C.sub.12芳基)、-(C.sub.1-C.sub.8)烷基-(C.sub.6-C.sub.12芳基),或芳基或烷基被以下一到三个基团取代:-(C.sub.6-C.sub.12芳基)、-(C.sub.1-C.sub.3)烷基、-(C.sub.1-C.sub.3)烷氧基、卤素、三氟甲基;根据所使用的起始材料,由图BG.sub.4-1所示结构表示的化合物可能具有所示的两种立体化学排列中的其中一种,或者如果起始材料是外消旋混合物,则反应可能产生1:1的图BG.sub.4-1所示产物组合的比例,即外消旋混合物。