Using Cc1ccc(C)c(N2CCN(C(=O)C3CN(S(=O)(=O)c4ccc(Cl)cc4)CCN3)CC2)c1, CCCCCBr to produce CCCCCN1CCN(S(=O)(=O)c2ccc(Cl)cc2)CC1C(=O)N1CCN(c2cc(C)ccc2C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.