Using CCOP(=O)(CN1C(=O)[C@@H](N=[N+]=[N-])[C@H]1CCC1COCCO1)OCCC(=O)OCc1ccccc1 to produce CCOP(=O)(CN1C(=O)[C@@H](N=[N+]=[N-])[C@H]1CCC(C)=O)OCCC(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.