Ethyl 5-bromo-4-(chloromethyl)-2-(difluoromethyl)pyridine-3-acetate
3-(Chloromethyl)-5-(difluoromethyl)-2-(trifluoromethyl)pyridine-6-sulfonyl chloride
2-Chloro-4-methyl-3-(trifluoromethyl)pyridine
3-Chloro-5-cyano-2-(difluoromethyl)pyridine-6-acetic acid