Ethyl 5-amino-2-(aminomethyl)-3-(difluoromethyl)pyridine-4-acetate
Methyl 3-amino-5-(difluoromethyl)-6-methylpyridine-2-acetate
2-Amino-5-(bromomethyl)-3-(difluoromethyl)pyridine-6-methanol
Ethyl 4-amino-5-(aminomethyl)-3-(difluoromethyl)pyridine-2-acetate