2-Bromo-5-cyano-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
2-Amino-3-(fluoromethyl)-5-(trifluoromethoxy)pyridine-4-methanol
2-Bromo-4-cyano-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride
3-Amino-6-(fluoromethyl)-2-(trifluoromethoxy)pyridine-4-acetonitrile