Using CCN=C=NCCCN(C)C, O=C(O)c1csc(N2CCN(S(=O)(=O)c3ccccc3Cl)CC2)n1 to produce NC(=O)c1csc(N2CCN(S(=O)(=O)c3ccccc3Cl)CC2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.