2-Amino-3-(aminomethyl)-5-(difluoromethyl)pyridine-4-acetic acid
5-Amino-4-(bromomethyl)-2-(difluoromethyl)-3-methylpyridine
3-Amino-4-(bromomethyl)-5-(difluoromethyl)-2-methylpyridine
Ethyl 3-amino-6-(aminomethyl)-2-(difluoromethyl)pyridine-4-carboxylate