6-(Aminomethyl)-4-bromo-2-(difluoromethyl)pyridine-3-carboxylic acid
3-Chloro-4-(chloromethyl)-6-(difluoromethyl)-2-fluoropyridine
6-(Aminomethyl)-4-bromo-3-(difluoromethyl)pyridine-2-carboxylic acid
2-(Aminomethyl)-4-bromo-3-(difluoromethyl)pyridine-6-carboxylic acid