Heterocyclic compounds of the formula:-
wherein X and Y, which may be the same or different, are each a = N-or = CH-group and R is a phenyl radical which optionally bears one or more substituents selected from halogen atoms, amino, cyano, carbamoyl; hydroxy and nitro radicals, 1-6C alkyl, halogenoalkyl, alkoxy, halogenoalkoxy and alkylamino radicals, di(1-6C alkyl)amino and 2-6C alkoxycarbonyl radicals, and n is 1 to 6, but excluding the compound wherein X and Y are each = N-, R is 2,4-dichlorophenyl and n is 1; and the pharmaceutically or veterinarily acceptable acid addition salts thereof; processes for their manufacture; and pharmaceutical and veterinary compositions containing them.
                            式中 X 和 Y(可以相同或不同)各自为=N-或=CH-基团,R 为苯基基团,该基团可选择带有一个或多个选自卤素原子、
氨基、
氰基、
氨基甲酰基、羟基和硝基、1-6C 烷基、卤代烷基、烷氧基、卤代烷氧基和烷基
氨基基、二(1-6C 烷基)
氨基和 2-6C 烷氧基羰基的取代基,且 n 为 1 至 6,但不包括其中 X 和 Y 各自为=N-,R 为 2,4-二
氯苯基且 n 为 1 的化合物;以及它们的药用或兽用可接受的酸加成盐;它们的制造工艺;以及含有它们的药用和兽用组合物。