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