Using COc1ccc([C@@H]2CN(C(=O)OC(C)(C)C)C[C@H]2CCOCc2ccccc2)c(O)c1 to produce COc1ccc([C@@H]2CN(C(=O)OC(C)(C)C)C[C@H]2CCO)c(O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.