Using CC(C)C(=O)Cl, C[C@@H]1OC(=O)[C@@H](N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)COC[C@H](Cc2cccc3ccccc23)[C@H]1O to produce CC(C)C(=O)O[C@@H]1[C@@H](Cc2cccc3ccccc23)COC[C@H](N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)C(=O)O[C@H]1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.