Using N[C@H](CCc1ccccc1)C(=O)OCc1ccccc1, CC(C)(CC(=O)O)NC(=O)OC(C)(C)C to produce CC(C)(CC(=O)N[C@H](CCc1ccccc1)C(=O)OCc1ccccc1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.