Using Cc1c(-c2ccccc2)c2cc(O)ccc2n1C, CCOC(=O)C(C)(C)Br to produce CCOC(=O)C(C)(C)Oc1ccc2c(c1)c(-c1ccccc1)c(C)n2C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.