Methyl 2-(difluoromethyl)-6-nitro-4-(trifluoromethoxy)pyridine-3-carboxylate
4-(Bromomethyl)-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-carboxaldehyde
2-Nitro-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-5-sulfonyl chloride
Methyl 2-(difluoromethyl)-5-nitro-6-(trifluoromethoxy)pyridine-3-carboxylate