Ethyl 4-amino-5-(chloromethyl)-3-(difluoromethyl)pyridine-2-carboxylate
2-Amino-6-(difluoromethyl)-5-(trifluoromethyl)pyridine-3-acetonitrile
Ethyl 3-amino-5-(chloromethyl)-2-(difluoromethyl)pyridine-4-carboxylate
4-Amino-2-(bromomethyl)-5-(difluoromethyl)pyridine-3-carboxylic acid