Using O=C1CCCc2c1ccc(O)c2CCc1ccccc1, CCOC(=O)C(C)(C)Br to produce CCOC(=O)C(C)(C)Oc1ccc2c(c1CCc1ccccc1)CCCC2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.