FORFARANDE FOR FRAMSTELLNING AV SULFONYLBENSIMIDAZOLER

摘要

Sulphonylbenzimidazole derivatives of formula wherein R2 represents and the substituents R, R5 and R6 are defined in Claim 1, are prepared by reacting a corresponding sulphonylbenzimidazole which instead of the substituent R2 has a group with a C1-C7-alkyl-magnesium halide or C1-C7-alkyl-lithium and then performing a hydrolysis. Dehydration of the compounds of formula I gives compounds which contain the group The compounds prepared may be used for the control of viruses.