5-Amino-3-(aminomethyl)-2-(difluoromethyl)pyridine-4-acetic acid
6-Amino-2-(aminomethyl)-3-(difluoromethyl)pyridine-4-acetic acid
Ethyl 3-amino-4-(aminomethyl)-5-(difluoromethyl)pyridine-2-acetate
Ethyl 3-amino-2-(aminomethyl)-5-(difluoromethyl)pyridine-4-acetate