3-Amino-2-(aminomethyl)-4-(difluoromethyl)pyridine-6-carboxylic acid
Methyl 2-amino-6-(chloromethyl)-5-(difluoromethyl)pyridine-3-acetate
Ethyl 4-amino-3-(bromomethyl)-5-(difluoromethyl)pyridine-2-acetate
2-Amino-6-(aminomethyl)-3-(difluoromethyl)pyridine-5-carboxylic acid