TRISUBSTITUTED PIPERIDINE DERIVATIVES

摘要

Compounds of formula (I) and pharmaceutically acceptable salts thereof: wherein R1 and R2 are both hydrogen or together are a bond; R3 and R4 are independently optionally substituted phenyl or naphthyl groups: R5 is a group (CH2)nR6 wherein n is 1 or 2 and R6 is an optionally substituted phenyl or naphthyl group having activity against disorders relating to impaired gastro-intestinal motility, a process and intermediates for their preparation and their use as pharmaceuticals