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