4-Bromo-3-(difluoromethyl)-6-methylpyridine-2-sulfonyl chloride
2-(Aminomethyl)-5-bromo-3-(difluoromethyl)pyridine-4-carboxylic acid
2-(Aminomethyl)-4-bromo-3-(difluoromethyl)pyridine-5-carboxylic acid
5-Bromo-2-(chloromethyl)-4-(difluoromethyl)pyridine-3-carboxylic acid