Using C[Si](C)(Cl)Cl, CC1=Cc2cc3c(cc2C1)C(C)(C)CC3(C)C to produce CC1=Cc2cc3c(cc2C1[Si](C)(C)Cl)C(C)(C)CC3(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.