Using C[C@H](c1ccccc1)N1CCCOC(c2cccc(Br)c2)C1=O to produce C[C@H](c1ccccc1)N1CCCOC(c2cccc(Br)c2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.