Using C[C@@H](NC(=O)c1nc(CCCc2ccccc2)c[nH]1)C(=O)N[C@H]1CC(=O)O[C@@H]1OCc1ccccc1 to produce C[C@H](NC(=O)c1nc(CCCc2ccccc2)c[nH]1)C(=O)N[C@H](C=O)CC(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.