Using CC(C)(C)OC(=O)[C@@H]1CCCCN1C(=O)OCc1ccccc1, CC(C)C[C@H](NC(=O)OCc1ccccc1)C(=O)O to produce CC(C)C[C@H](NC(=O)OCc1ccccc1)C(=O)N1CCCC[C@H]1C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.