Using CC1=C(C)C([Si](C)(C)Cl)C(C)=C1C, c1ccc(-[c-]2ccc3ccccc32)cc1 to produce CC1=C(C)C([Si](C)(C)C2C=C(c3ccccc3)c3ccccc32)C(C)=C1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.