Ethyl 3-chloro-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3-chloro-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-carboxylate
2-Cyano-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-5-acetic acid
Methyl 3-fluoro-5-methoxy-6-(trifluoromethoxy)pyridine-2-carboxylate