Using Oc1cc(-c2ccccc2)ccn1, CCOC(=O)C(CC)(CCBr)S(C)(=O)=O to produce CCOC(=O)C(CC)(CCn1ccc(-c2ccccc2)cc1=O)S(C)(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.