4-Chloro-3-cyano-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
4-Bromo-3-iodo-6-nitro-2-(trifluoromethoxy)pyridine
4-Bromo-3-iodo-2-nitro-6-(trifluoromethoxy)pyridine
4-Chloro-2-cyano-6-(trifluoromethoxy)pyridine-3-carboxaldehyde
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