Process for the production of pharmaceutically active benzimidazole derivatives

摘要

A pharmaceutical compound of the formula in which R<1> and R<7> are each halo, trifluoromethyl, C1-6 alkyl, C1-6 alkoxy, optionally substituted phenyl, optionally substituted naphthyl or optionally substituted heteroaryl, R<2> and R<3> are each hydrogen or C1-6 alkyl, R<4> and R<5> are each hydrogen, halo, trifluoromethyl, C1-6 alkyl, C1-6 alkoxy, optionally substituted phenyl, optionally substituted naphthyl or optionally substituted heteroaryl, R<6> is hydrogen, C1-6 alkyl, optionally substituted phenyl, optionally substituted naphthyl, optionally substituted heteroaryl, optionally substituted phenyl-C1-6 alkyl or -CO2R<8> where R<8> is an ester group, m and p are each 0, 1, 2, 3 or 4, n is 1, 2, 3 or 4, Z is where R<9> and R<1><0> are each hydrogen, C1-6 alkyl or optionally substituted phenyl-C1-6 alkyl, X is oxygen or sulphur, and Y is where R<1><1> and R<1><2> are each hydrogen, C1-6 alkyl, trifluoromethyl, optionally substituted phenyl, optionally substituted naphthyl or optionally substituted heteroaryl; and salts and solvates thereof. The compounds of the invention are indicated for use in the treatment of diseases of the central nervous system. They are active in tests that indicate serotonergic modulation.