Methyl 3-(aminomethyl)-5-(difluoromethyl)-2-iodopyridine-6-acetate
Ethyl 4-(bromomethyl)-3-(difluoromethyl)-6-iodopyridine-2-carboxylate
4-Bromo-2-(difluoromethyl)-6-methoxy-3-methylpyridine
5-Amino-4-chloro-2-(difluoromethyl)pyridine-3-carboxylic acid