Using CCC1C(=O)NC1OC(C)=O, O=C(NCCCC(O)=S)OCc1ccc([N+](=O)[O-])cc1 to produce CCC1C(=O)NC1SC(=O)CCCNC(=O)OCc1ccc([N+](=O)[O-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.