2-Amino-3-(aminomethyl)-4-(difluoromethyl)pyridine-5-acetic acid
5-Amino-2-(chloromethyl)-3-(difluoromethyl)-4-methoxypyridine
Ethyl 4-amino-3-(aminomethyl)-2-(difluoromethyl)pyridine-5-carboxylate
4-Amino-3-(chloromethyl)-2-(difluoromethyl)-5-methoxypyridine