Using CC(=O)N[C@@H](Cc1cccc(OCc2ccccc2)c1)[C@H](O)[C@H]1CO[C@@H](OCC2(C)CCCC2)CN1C(=O)OC(C)(C)C to produce CC(=O)N[C@@H](Cc1cccc(O)c1)[C@H](O)[C@H]1CO[C@@H](OCC2(C)CCCC2)CN1C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.