Using CCOC(=O)[C@@H]1Cc2ccc(-c3ccccc3)cc2CN1C(=O)OC(C)(C)C to produce CCOC(=O)[C@@H]1Cc2ccc(-c3ccccc3)cc2CN1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.