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