Using COc1ccc(-c2sc3cc(OC)ccc3c2-c2cccc(O)c2)cc1, BrCCCCBr to produce COc1ccc(-c2sc3cc(OC)ccc3c2-c2cccc(CCCCBr)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.