Ethyl 4-chloro-2-cyano-3-(trifluoromethoxy)pyridine-5-carboxylate
4-Chloro-2-(chloromethyl)-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine
Ethyl 6-chloro-3-cyano-4-(trifluoromethoxy)pyridine-2-carboxylate
3-Chloro-5-(chloromethyl)-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine