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