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