2,6-Diamino-3-(difluoromethyl)-5-iodopyridine
3,5-Diamino-2-(difluoromethyl)-6-methylpyridine
3,6-Diamino-2-(difluoromethyl)-4-iodopyridine
3,5-Diamino-2-(difluoromethyl)-4-(trifluoromethyl)pyridine
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