Using Cn1c(-c2ccccc2O)c(C2CCCCC2)c2ccc(C(=O)OC(C)(C)C)cc21, COC(=O)CBr to produce COC(=O)COc1ccccc1-c1c(C2CCCCC2)c2ccc(C(=O)OC(C)(C)C)cc2n1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.