3-Bromo-4-chloro-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-Bromo-4-cyano-6-(fluoromethyl)-2-(trifluoromethoxy)pyridine
2-Bromo-4-cyano-3-(trifluoromethoxy)pyridine-6-carboxaldehyde
6-Bromo-3-cyano-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine