申请人:Ciba-Geigy Corporation
公开号:US04205077A1
公开(公告)日:1980-05-27
Benzimidazole derivatives of the formula ##STR1## in which R and R.sub.1 independently of one another are each hydrogen, an alkanoyl group having 1 to 4 carbon atoms, an alkoxycarbonyl group having 1 to 4 carbon atoms, an alkylsulphonyl group having 1 to 4 carbon atoms, a benzoyl group, a phenylsulphonyl group or a p-methylphenylsulphonyl group; R.sub.2 and R.sub.4 independently of one another are each hydrogen, halogen or a methyl group, R.sub.3 is hydrogen, halogen, a methyl group or a methoxy group; X is oxygen or sulphur; Y is halogen, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a methylthio group, a methylsulphinyl group, a methylsulphonyl group, a trifluoromethyl group, a nitro group, a hydroxyl group, a cyano group or an acetyl group; and m is 0, 1, 2 or 3; and if one of the two radicals R or R.sub.1 is hydrogen, the position of the other of these radicals on the N atoms cannot be clearly established, including, when at least one of the two radicals R or R.sub.1 is hydrogen, the possible tautomeric compounds of the formula I; and the disulphides obtainable by oxidation of compounds of the formula I. The compounds are useful for combating helminths in domestic animals and productive animals.
公式为 ##STR1## 的苯并咪唑衍生物,其中R和R.sub.1彼此独立,分别为氢、1至4个碳原子的脂肪酰基、1至4个碳原子的烷氧羰基、1至4个碳原子的烷基磺酰基、苯甲酰基、苯基磺酰基或对甲基苯基磺酰基;R.sub.2和R.sub.4彼此独立,分别为氢、卤素或甲基基团,R.sub.3为氢、卤素、甲基或甲氧基;X为氧或硫;Y为卤素、1至4个碳原子的烷基、1至4个碳原子的烷氧基、甲基硫基、甲基亚磺酰基、甲基磺酰基、三氟甲基基团、硝基、羟基、氰基或乙酰基;m为0、1、2或3;如果两个基团R或R.sub.1中的一个为氢,则无法明确另一个基团在N原子上的位置,包括当至少两个基团R或R.sub.1中的一个为氢时,公式I的可能互变异构体;以及由公式I的化合物氧化得到的二硫化物。这些化合物对于在家畜和生产性动物中对抗蠕虫有用。