Using COc1ccc(CS[C@H]2C[C@@H](C(=O)N3CCN(CCO)CC3)N(C(=O)OCc3ccc([N+](=O)[O-])cc3)C2)cc1 to produce O=C([C@@H]1C[C@H](S)CN1C(=O)OCc1ccc([N+](=O)[O-])cc1)N1CCN(CCO)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.