Using C[C@H]1CCc2c(ccc(-c3cn[nH]c3)c2Oc2ccccc2)N1C(=O)C1CC1, O=S1(=O)CCC(Br)CC1 to produce C[C@H]1CCc2c(ccc(-c3cnn(C4CCCS(=O)(=O)C4)c3)c2Oc2ccccc2)N1C(=O)C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.