3-Amino-6-(chloromethyl)-2-(difluoromethyl)-4-methoxypyridine
4-Amino-5-(chloromethyl)-2-(difluoromethyl)-3-methoxypyridine
5-Amino-4-(aminomethyl)-2-(difluoromethyl)pyridine-3-carboxaldehyde
2-Amino-5-(aminomethyl)-4-(difluoromethyl)pyridine-3-carboxaldehyde