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