2-(Aminomethyl)-3-bromo-6-(difluoromethyl)pyridine-5-carboxylic acid
3-Chloro-4-(chloromethyl)-2-(difluoromethyl)-5-fluoropyridine
2-(Aminomethyl)-3-bromo-5-(difluoromethyl)pyridine-6-carboxylic acid
3-Chloro-2-(chloromethyl)-6-(difluoromethyl)-4-fluoropyridine