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