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