5-Chloro-4-cyano-2-(difluoromethyl)pyridine-3-sulfonyl chloride
3-Chloro-4-cyano-5-(difluoromethyl)pyridine-2-sulfonyl chloride
Ethyl 2-(aminomethyl)-3-bromo-5-(difluoromethyl)pyridine-6-carboxylate
5-Chloro-2-(difluoromethyl)-3-fluoro-6-hydroxypyridine