PROCESS FOR PREPARING IMIDAZOPYRIDINE DERIVATIVES

摘要

FIELD: chemical industry. SUBSTANCE: claimed invention describes process for preparing imidazopyridine derivatives of general formula:by hydrogenation of 2-amino-3-nitropyridine in the presence of hydrogenation catalyst, and hydrogenation product is condensed with carboxylic acid present in the reaction mixture to final product. Imidazopyridine derivatives are essentially intermediate products for preparation of angiotensine II antagonists. EFFECT: more efficient preparation process.