Using CC(C)(C)[Si](OCC#CCCOC1CCCCO1)(c1ccccc1)c1ccccc1 to produce CC(C)(C)[Si](OCC#CCCO)(c1ccccc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.