Methyl 3-cyano-2-(fluoromethyl)-5-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 2-cyano-5-(fluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 4-chloro-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 4-chloro-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-carboxylate