Ethyl 2-(difluoromethyl)-3-methoxy-4-(trifluoromethyl)pyridine-6-carboxylate
Methyl 3-(difluoromethyl)-6-methoxy-2-(trifluoromethyl)pyridine-4-carboxylate
Ethyl 3-(chloromethyl)-2-(difluoromethyl)-4-methoxypyridine-5-acetate
Methyl 3-(difluoromethyl)-6-methoxy-4-(trifluoromethyl)pyridine-2-carboxylate