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