Hypotensive piperidine derivatives

摘要

PCT No. PCT/JP79/00141 Sec. 371 Date Feb. 2, 1980 Sec. 102(e) Date Jan. 31, 1980 PCT Filed Jun. 1, 1979 PCT Pub. No. WO80/00024 PCT Pub. Date Jan. 10, 1980.The present invention relates to a novel compound represented by the general formula: <IMAGE> wherein Ar represents a naphthyl, phenyl or substituted phenyl group, Q represents <IMAGE> wherein R1 represents a hydrogen atom, or an alkyl, alkanoyl or alkoxycarbonyl group, R represents a hydrogen atom or an alkyl group, and Z represents a substituted benzimidazolinyl group; the broken line in piperidine ring means that 3,4-positions in the piperidine ring are saturated or form a double bond. Said compound and the pharmaceutically acceptable acid addition salts thereof have a hypotensive action and therefore are useful as medicine.