Using CC(C)[Si](OCCC(CN(C)C(=O)OC(C)(C)C)c1ccc(C#N)cc1)(C(C)C)C(C)C to produce CNCC(CCO)c1ccc(C#N)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.