Method for obtaining derivatives of (pyridil substituted)methylthiobenzimidazol

摘要

A method for producing derivatives of [[(pyridil substituted)methyl]thio]benzimidazole of formula (I), the method comprising: (a) reacting an N-oxide of methyl pyridine of formula (IV) with an anhydride of a carboxylic acid or sulfonic acid, to provide an intermediate of formula (V), (b) reacting the intermediate of formula (V) with a 2-mercaptobenzimidazole derivative of formula (III), to provide a compound of formula (I).