Ethyl 6-alkyl(aryl)-4-chloromethyl-2-methylpyridine-3-carboxylates react with ammonia and primary amines to give 6-substituted 3-alkyl(aryl)-1-methyl-1,2-dihydropyrrolo[3,4-c]pyridin-7-ones. The reactions with 4-aminopyridine yield ethyl 6-alkyl(aryl)-2-methyl-4-(4-pyridylaminomethyl)pyridine-3carboxylates.
Ethyl 6-alkyl(aryl)-4-chloromethyl-2-methylpyridine-3-carboxylates react with ammonia and primary amines to give 6-substituted 3-alkyl(aryl)-1-methyl-1,2-dihydropyrrolo[3,4-c]pyridin-7-ones. The reactions with 4-aminopyridine yield ethyl 6-alkyl(aryl)-2-methyl-4-(4-pyridylaminomethyl)pyridine-3carboxylates.