Using CCOC1(c2ccc(C#C[Si](CC)(CC)CC)cc2C(C)(C)C)CC1 to produce C#Cc1ccc(C2(OCC)CC2)c(C(C)(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.