Using Clc1ccc(C(=CCCc2cccc(Oc3ccccc3)c2)C2CC2)cc1 to produce Clc1ccc(C(CCCc2cccc(Oc3ccccc3)c2)C2CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.