Using NCCC1CCN(S(N)(=O)=O)CC1, O=C(Cl)c1cc(Cl)ccn1 to produce NS(=O)(=O)N1CCC(CCNC(=O)c2cc(Cl)ccn2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.