3-Cyano-6-(trifluoromethoxy)pyridine-2-sulfonamide
5-Cyano-2-(trifluoromethoxy)pyridine-3-sulfonamide
6-Cyano-2,3-diamino-4-(trifluoromethoxy)pyridine
5-Cyano-2,3-diamino-4-(trifluoromethoxy)pyridine
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