4-HYDROXY-PIPERIDINE DERIVATIVES, PREPARATION AND USE THEREOF, PHARMACEUTICAL COMPOSITIONS CONTAINING THESE COMPOUNDS

摘要

4-Hydroxypiperidine derivatives of formula (I) and their addition salts are new. X = O, NH, CH2, CH, CHOH, CO, S, SO or SO2; R1-R4 =H, OH, (lower alkyl)sulphonylamino, 1- or 2-imidazolyl, 2-imidazolyl or acetamido; R5-R8 = H, OH, lower alkyl, halo, lower alkoxy, trifluoromethyl or trifluoromethyloxy; a, b = optionally double bonds, provided that when a is double, b cannot be double; n = 0-2; m = 1-3; and p = 0 or 1.