Methyl 2-cyano-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylate
6-(Difluoromethyl)-3-fluoro-2-(trifluoromethoxy)pyridine-4-carboxylic acid
Ethyl 2-cyano-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-acetate
Ethyl 2-cyano-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine-4-acetate