6-(Chloromethyl)-4-(difluoromethyl)-3-fluoropyridine-2-carboxylic acid
2-(Chloromethyl)-3-(difluoromethyl)-4-fluoropyridine-5-carboxylic acid
3-(Aminomethyl)-5-(difluoromethyl)-2-fluoropyridine-6-carboxaldehyde
2-(Aminomethyl)-4-(difluoromethyl)-6-fluoropyridine-3-carboxaldehyde