2-Cyano-3,6-diamino-4-(difluoromethyl)pyridine
3-(Difluoromethyl)-2-(trifluoromethyl)pyridine-5-sulfonamide
2-(Difluoromethyl)-5-(trifluoromethyl)pyridine-4-sulfonamide
3-Cyano-2,5-diamino-6-(difluoromethyl)pyridine
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