Using CCOC(=O)CBr, O=C(OCc1ccccc1)C1CCc2[nH]c3c(Cl)cccc3c2C1 to produce CCOC(=O)Cn1c2c(c3cccc(Cl)c31)CC(C(=O)OCc1ccccc1)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.