| 摘要 |
A piperidine derivative of general formula (I) or a pharmaceutically acceptable salt thereof; <CHEM> wherein any of R<1>, R<2>, R<3> and R<4> may be the same or different from each other and each independently represents a hydrogen atom or other substituent; X represents an aralkyl- or aryl-containing group having from 6 to 30 carbon atoms or an alkyl group having from 4 to 30 carbon atoms or a cycloalkyl-containing group, which may optionally have substituent(s) and which may be substituted by hetero atom(s) or hetero atom-containing organic group(s), said alkyl group optionally containing unsaturated bond(s); Y represents a hetero atom or an optionally substituted alkylene chain, the alkylene chain optionally containing hetero atom(s) or unsaturated bond(s); and A represents an optionally substituted condensed aromatic or heterocyclic ring. The compounds are useful as hypotensives. |
