Ethyl 2-cyano-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylate
6-Fluoro-4-(difluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine
Ethyl 6-cyano-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 2-cyano-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-carboxylate