Using CCCCC12CCC(=O)C(Br)=C1c1ccc(O)cc1C2, [Li]CCCC to produce C=C1CCC2(CCCC)Cc3cc(O)ccc3C2=C1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.