Using COC(=O)[C@H](CNC(=O)C1CCN(c2cccc(NC3=NCCCN3)c2)CC1)NC(=O)OCc1ccccc1 to produce O=C(N[C@@H](CNC(=O)C1CCN(c2cccc(NC3=NCCCN3)c2)CC1)C(=O)O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.