Ethyl 6-(chloromethyl)-2-(difluoromethyl)-3-fluoropyridine-4-acetate
3-(Aminomethyl)-4-(difluoromethyl)-5-fluoropyridine-2-acetic acid
Methyl 4-(aminomethyl)-2-(difluoromethyl)-3-fluoropyridine-5-acetate
2-(Aminomethyl)-5-(difluoromethyl)-6-fluoropyridine-3-acetic acid