Using COC(=O)[C@@]1(Cc2cccc(Cl)c2)CO[C@@H](C(C)(C)C)N1C(=O)OC(C)(C)C to produce COC(=O)[C@](N)(CO)Cc1cccc(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.