Benzimidazole sulphides as anthelmintic agents
US4205077A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1978 |
| Grant date | May 27, 1980 |
| Priority date | — |
| Expiry date | Apr 10, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P33/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
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 comb…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.