N-2-(Phthalimido)ethyl trans-piperidine-2,5-dicarboxylates as intermediates in the preparation of perhydro-1H-pyrido[1,2-a]pyrazines
申请人:PFIZER INC.
公开号:EP0737683A1
公开(公告)日:1996-10-16
Compounds of the formula
wherein R is (C1-C3)alkyl, are intermediates for use in the preparation of certain neuroleptic, racemic or optically active perhydro-1H-pyrido [1,2-a] pyrazines.
式中的化合物
其中 R 为(C1-C3)烷基,是用于制备某些神经性、外消旋或光学活性全氢-1H-吡啶并[1,2-a] 吡嗪的中间体。