[5(6)-(benzisoxa-, benzisothia- or indazol-3-yl)-1H-benzimidazol-2-yl]carbamates of formula (I) wherein R.sup.1 is hydrogen, C.sub.1-4 alkyl, halo, hydroxy or C.sub.1-4 alkyloxy; R.sup.2 is C.sub.1-4 alkyl; and X is O, S, SO, SO.sub.2 or NR.sup.3, said R.sup.3 being hydrogen, C.sub.1-4 alkyl, aryl or arylC.sub.1-4 alkyl. The compounds of formula (I) have anthelminthic properties. Compositions containing said compounds as active ingredient, a method of combating helminths, and a process for preparing said compounds and compositions.
公式(I)中的[5(6)-(苯并
异恶唑,苯并异
硫恶唑或
吲哚-3-基)-1H-
苯并咪唑-2-基]
氨基甲酸酯,其中R.sup.1为氢,C.sub.1-4烷基,卤素,羟基或C.sub.1-4烷氧基;R.sup.2为C.sub.1-4烷基;X为O,S,SO,SO.sub.2或NR.sup.3,其中R.sup.3为氢,C.sub.1-4烷基,芳基或芳基C.sub.1-4烷基。公式(I)的化合物具有驱虫作用。含有上述化合物为活性成分的组合物,一种用于对抗蠕虫的方法,以及制备上述化合物和组合物的方法。