Using O=C(O)CNC(=O)c1cc2cc(Cl)ccc2[nH]1, COC(=O)C1NCCS1 to produce COC(=O)C1SCCN1C(=O)CNC(=O)c1cc2cc(Cl)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.