6-(Aminomethyl)-3,4-diamino-2-(difluoromethyl)pyridine
4-(Bromomethyl)-3-(difluoromethyl)pyridine-2-sulfonyl chloride
3-(Aminomethyl)-2,6-diamino-5-(difluoromethyl)pyridine
2-Amino-4,5-dibromo-3-(difluoromethyl)pyridine
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