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