6-Chloro-3-nitro-4-(trifluoromethoxy)pyridine-2-sulfonamide
2-Chloro-5-nitro-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
Ethyl 2-cyano-3-nitro-6-(trifluoromethoxy)pyridine-4-carboxylate
2-Chloro-4-nitro-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride