Using CCOC(=O)C=COC(=O)c1ccc(NCCCCCCCCCCCCCCCCBr)cc1 to produce CCOC(=O)c1ccc(NCCCCCCCCCCCCCCCCBr)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.