Using CCC1C(=O)N2C(C(=O)OCc3ccc([N+](=O)[O-])cc3)=C(SC(C)=O)SC12 to produce CCC1C(=O)N2C(C(=O)OCc3ccc([N+](=O)[O-])cc3)C(=S)SC12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.