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