abstract |
A compound of formula (I) ##STR1## in which: X denotes hydrogen, a halogen, a trifluoromethyl group, a C 1 -C 4 alkyl group or a C 1 -C 4 alkoxy group; n R 1 denotes a linear or branched C 2 -C 8 alkyl group, a C 3 -C 5 cycloalkyl group or a cycloalkylmethyl group in which the cycloalkyl moiety has from 3 to 5 carbon atoms; n R 2 denotes hydrogen or a C 1 -C 4 alkyl group; n R 3 denotes a pyridylalkyl group; and n Ar denotes a phenyl group, optionally having from one to three substituents, each of which is, independently, a halogen or a C 1 -C 4 alkyl, C 1 -C 4 alkoxy, trifluoromethyl; nitro or cyano group, or Ar denotes a naphthyl group; n or a pharmacologically acceptable acid addition salt thereof. |