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