Methyl 3-(difluoromethyl)-2-fluoro-5-(trifluoromethoxy)pyridine-6-carboxylate
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