Methyl 4-(chloromethyl)-5-(difluoromethyl)-3-iodopyridine-2-acetate
4-Amino-5-(bromomethyl)-3-cyano-2-(difluoromethyl)pyridine
Methyl 2-(difluoromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-6-carboxylate
5-Amino-3-(difluoromethyl)-2-fluoropyridine-4-carboxylic acid