Using CC(=O)O[C@@H]1CC(O[Si](c2ccccc2)(c2ccccc2)C(C)(C)C)C(C)[C@@H](OC(C)=O)C1 to produce CC1C(O[Si](c2ccccc2)(c2ccccc2)C(C)(C)C)C[C@@H](O)C[C@@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.