Using CC1(Cl)CSC2C(NC(=O)Cc3ccccc3)C(=O)N2C1C(=O)OCc1ccc([N+](=O)[O-])cc1 to produce CC1(Cl)CSC2C(NC(=O)Cc3ccccc3)C(=O)N2C1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.