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