Using CCOC(=O)CBr, Oc1cc2cc(C3CCCCC3)sc2c(Cl)c1Cl to produce CCOC(=O)COc1cc2cc(C3CCCCC3)sc2c(Cl)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.