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