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