Using OB(O)c1ccoc1, Oc1ccc(C(=C2CCCCCC2)c2ccc(Br)cc2)cc1 to produce Oc1ccc(C(=C2CCCCCC2)c2ccc(-c3ccoc3)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.