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