Using CCCCCCCCCCCBr, O=Cc1cc([N+](=O)[O-])ccc1O to produce CCCCCCCCCCCOc1ccc([N+](=O)[O-])cc1C=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.