2-Amino-4-(aminomethyl)-6-(difluoromethyl)pyridine-3-carboxylic acid
6-Amino-2-(aminomethyl)-4-(difluoromethyl)pyridine-3-methanol
Ethyl 3-amino-2-(aminomethyl)-4-(difluoromethyl)pyridine-5-carboxylate
Ethyl 6-amino-2-(aminomethyl)-4-(difluoromethyl)pyridine-3-carboxylate