Using COC(=O)C(=C(C)C)N1C(=O)[C@H](C(C)O)[C@H]1SC, O=C(Cl)OCc1ccc([N+](=O)[O-])cc1 to produce COC(=O)C(=C(C)C)N1C(=O)[C@H](C(C)OC(=O)OCc2ccc([N+](=O)[O-])cc2)[C@H]1SC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.