Using CCOC(=O)CBr, O=C1CC2(CCCCC2)Oc2ccc(O)cc21 to produce CCOC(=O)COc1ccc2c(c1)C(=O)CC1(CCCCC1)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.