Using BrCc1ccccc1, COc1ccc(CCC2(C3CCCC3)CC(=O)CC(=O)O2)cc1 to produce COc1ccc(CCC2(C3CCCC3)CC(=O)C(Cc3ccccc3)C(=O)O2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.