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