Using CC(=O)O, CC[C@H](C)[C@H](C(=O)OC)N(C(=O)[C@H](NC(=O)OCc1ccccc1)C1Cc2ccccc2C1)C(C(=O)Nc1ccccc1OCc1ccccc1)c1ccc(C)nc1C to produce CC[C@H](C)[C@@H]1C(=O)N[C@H](C2Cc3ccccc3C2)C(=O)N1C(C(=O)Nc1ccccc1O)c1ccc(C)nc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.