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