Using C[S+](C)(C)=O, CC(C)(C)[Si](OC1CCC(=O)CC1)(c1ccccc1)c1ccccc1 to produce CC(C)(C)[Si](OC1CCC2(CC1)CO2)(c1ccccc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.