2-羟基环己-2,5-二烯-1,4-二酮

2,5-di(piperidin-1-yl)cyclohexa-2,5-diene-1,4-dione

2,5-二(苯基氨基)环己-2,5-二烯-1,4-二酮

2,5-bis(imidazol-1'-yl)-1,4-dihydroxybenzene

2,3-bis(imidazol-1'-yl)-1,4-dihydroxybenzene