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