3-Chloro-2-cyano-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-Chloro-6-iodo-4-(trifluoromethoxy)pyridine-3-acetonitrile
4-Bromo-3-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetic acid
4-Bromo-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-6-acetic acid