Ethyl 4-(difluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine-2-acetate
2-(Bromomethyl)-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-carbonyl chloride
Ethyl 4-(difluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine-6-acetate
2-(Difluoromethyl)-5-nitro-6-(trifluoromethoxy)pyridine-3-carbonyl chloride