Using BrCc1ccccc1, O=C(O)[C@H](CCCCO)N1C(=O)c2ccccc2C1=O to produce O=C(OCc1ccccc1)[C@H](CCCCO)N1C(=O)c2ccccc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.