2,3-Diamino-5-(difluoromethyl)pyridine-4-carboxaldehyde
2,6-Diamino-3-(difluoromethyl)pyridine-5-acetic acid
4-(Difluoromethyl)-2,5-diiodopyridine-3-carboxylic acid
4,5-Diamino-2-(difluoromethyl)pyridine-3-sulfonamide
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