Using COc1ccc([C@@H]2Sc3ccccc3N(CCN(C)C)C(=O)[C@@H]2OC(C)=O)cc1 to produce COc1ccc([C@@H]2Sc3ccccc3N(CCN(C)C)C(=O)[C@@H]2O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.