Using CCOC(OCC)[C@H](CC(=O)OC(C)(C)C)NC(=O)[C@@H]1[C@H]2CC[C@H](C2)N1C(=O)OCc1ccccc1 to produce CCO[C@@H]1OC(=O)C[C@@H]1NC(=O)[C@@H]1[C@H]2CC[C@H](C2)N1C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.