Ethyl 3-(difluoromethyl)-2-fluoro-5-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 6-(difluoromethyl)-2-fluoro-3-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 2-(difluoromethyl)-6-fluoro-4-(trifluoromethoxy)pyridine-3-carboxylate
3-Iodo-5-nitro-6-(trifluoromethoxy)pyridine-2-carbonyl chloride