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