Using On1nnc2ccccc21, O=C(O)C[C@@H]1CSC(c2cc3cc(Cl)cc(NC4CCOCC4)c3[nH]2)=N1 to produce CNC(=O)C[C@@H]1CSC(c2cc3cc(Cl)cc(NC4CCOCC4)c3[nH]2)=N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.