5-Amino-4-cyano-3-(trifluoromethoxy)pyridine-2-sulfonamide
3-Bromo-5-chloro-4-cyano-2-(trifluoromethoxy)pyridine
3-Amino-4-cyano-2-(trifluoromethoxy)pyridine-5-sulfonamide
3-Amino-2-cyano-6-(trifluoromethoxy)pyridine-4-sulfonamide
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