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