2-Cyano-6-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetic acid
2-Cyano-5-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetic acid
Ethyl 5-cyano-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 2-cyano-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-acetate