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