Methyl 4-amino-5-(aminomethyl)-2-(difluoromethyl)pyridine-3-carboxylate
5-Amino-4-(aminomethyl)-2-(difluoromethyl)pyridine-3-acetic acid
3-Amino-2-(aminomethyl)-5-(difluoromethyl)pyridine-6-acetic acid
Methyl 4-amino-3-(aminomethyl)-5-(difluoromethyl)pyridine-2-carboxylate