3-(Aminomethyl)-6-bromo-4-(difluoromethyl)pyridine-2-carboxylic acid
4-Bromo-5-(bromomethyl)-2-(difluoromethyl)-3-iodopyridine
4-(Aminomethyl)-3-bromo-2-(difluoromethyl)pyridine-5-carboxylic acid
3-Bromo-5-(bromomethyl)-4-(difluoromethyl)-2-iodopyridine