Using COC(=O)[C@@H]1CC[C@@H](O[Si](c2ccccc2)(c2ccccc2)C(C)(C)C)C[C@H]1C(=O)OCc1ccccc1 to produce COC(=O)[C@@H]1CC[C@@H](O[Si](c2ccccc2)(c2ccccc2)C(C)(C)C)C[C@H]1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.