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