6-(Difluoromethyl)-2-methyl-3-(trifluoromethoxy)pyridine-4-carboxylic acid
2-(Difluoromethyl)-6-methyl-4-(trifluoromethoxy)pyridine-3-carboxylic acid
2-(2-Bromo-4-chlorobenzoyl)pyridine
2-(Difluoromethyl)-5-methyl-6-(trifluoromethoxy)pyridine-3-carboxylic acid