Using COC(=O)[C@H](CC(C)C)NC(=O)[C@@H](C)NC(=O)[C@@H](N)Cc1ccc(OCc2ccccc2)cc1, CC(C)(C)OC(=O)N[C@@H](COCc1ccccc1)C(=O)O to produce COC(=O)[C@H](CC(C)C)NC(=O)[C@@H](C)NC(=O)[C@H](Cc1ccc(OCc2ccccc2)cc1)NC(=O)[C@H](COCc1ccccc1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.