5-Cyano-2-nitro-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
3-Cyano-6-nitro-2-(trifluoromethoxy)pyridine-5-sulfonamide
5-Cyano-2-nitro-3-(trifluoromethoxy)pyridine-6-sulfonamide
5-(Aminomethyl)-2-cyano-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine