5-Chloro-4-cyano-2-(trifluoromethoxy)pyridine-3-acetic acid
4-Bromo-3-methyl-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
2-Bromo-3-nitro-6-(trifluoromethoxy)pyridine-5-sulfonyl chloride
3-Chloro-4-cyano-5-(trifluoromethoxy)pyridine-2-acetic acid