Ethyl 5-(chloromethyl)-2-cyano-3-(trifluoromethoxy)pyridine-6-carboxylate
4-Cyano-5-fluoro-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
Ethyl 3-chloro-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 6-chloro-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-carboxylate