Methyl 4-bromo-5-(bromomethyl)-2-(difluoromethyl)pyridine-3-acetate
Ethyl 3-chloro-6-cyano-4-(difluoromethyl)pyridine-2-acetate
3-Chloro-2-(difluoromethyl)-5-hydroxypyridine-6-acetic acid
3-Chloro-6-cyano-4-(difluoromethyl)pyridine-2-sulfonyl chloride