4-(Bromomethyl)-6-cyano-3-nitro-2-(trifluoromethoxy)pyridine
6-Cyano-2-nitro-4-(trifluoromethoxy)pyridine-3-carboxaldehyde
3-(Bromomethyl)-5-cyano-2-nitro-4-(trifluoromethoxy)pyridine
2-Cyano-4-nitro-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
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