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