Using Cc1oc(=O)oc1CCl, CC(C)(C)OC(=O)N[C@H](Cc1ccc(-c2ccccc2)cc1)C[C@@H](O)C(=O)O to produce Cc1oc(=O)oc1COC(=O)[C@H](O)C[C@@H](Cc1ccc(-c2ccccc2)cc1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.