method for preparation of pharmaceutical preparations sulfonyl - 1 - 2 - aminobenzimidazoolderivaten contain methods for preparation of 1 - 2 - sulfonyl aminobenzimidazoolderivaten,and formed pharmaceutical preparations.

摘要

Sulphonylbenzimidazole derivatives of formula IMAGE wherein R2 represents IMAGE 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 IMAGE 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 IMAGE The compounds prepared may be used for the control of viruses.