Hypotensive piperidine derivatives

摘要

A new piperidine derivative represented by the formula: <IMAGE> wherein X is oxygen, sulfur, carbonyl, hydroxymethylene or methylene; R1 is straight-chain alkylene having 1-4 carbon atoms with or without lower alkyl substituent(s); (A)m and R2 are usually used substituents; and Y is a monovalent group or a divalent group and is one of the following three groups: <IMAGE> (1) wherein when p is 0, B is -N=N-, <IMAGE> and when p is 1, B is <IMAGE> <IMAGE> (2) <IMAGE> (3) wherein (R3)n is a usually used substituent, has hypotensive activity.