Using CC(C)(C)OC(=O)N1CC[C@@H](NC(=O)CCl)[C@H](O)C1 to produce CC(C)(C)OC(=O)N1CC[C@H]2NC(=O)CO[C@@H]2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.