Using CC[Si](Cl)(CC)CC, C=Cc1c(C)cc2c(c1C)C(O)C(C)(CO)C2 to produce C=Cc1c(C)cc2c(c1C)C(O)C(C)(CO[Si](CC)(CC)CC)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.