Using CCOC(=O)CBr, Cc1cc(C(=O)CCc2nc(-c3ccc(Cl)cc3Cl)oc2C(C)C)ccc1O to produce CCOC(=O)COc1ccc(C(=O)CCc2nc(-c3ccc(Cl)cc3Cl)oc2C(C)C)cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.