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