Using CC(C)(C)[Si](C)(C)Cl, COc1ccccc1C[C@H](C[C@H](O)[C@H](Cc1ccccc1)NC(=O)OC(C)(C)C)C(=O)O to produce COc1ccccc1C[C@H](C[C@H](O[Si](C)(C)C(C)(C)C)[C@H](Cc1ccccc1)NC(=O)OC(C)(C)C)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.