Using CC(C)(C)[Si](C)(C)OCCC(CO)N1CCN(C(=O)OCc2ccccc2)CCC1=O, CI to produce COCC(CCO[Si](C)(C)C(C)(C)C)N1CCN(C(=O)OCc2ccccc2)CCC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.