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