Using O=C(NC(CCP(=O)(Oc1ccccc1)Oc1ccccc1)C(=O)OCc1ccccc1)OCc1ccc([N+](=O)[O-])cc1 to produce NC(CCP(=O)(Oc1ccccc1)Oc1ccccc1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.