2,3-Diamino-6-(difluoromethyl)-5-(trifluoromethyl)pyridine
4-(Chloromethyl)-2,6-diamino-3-(difluoromethyl)pyridine
4-(Chloromethyl)-2,5-diamino-3-(difluoromethyl)pyridine
3,5-Dichloro-2-(difluoromethyl)pyridine-4-sulfonamide
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