Polyhydroxy benzenes and quinones possessing the oxygenation pattern of 1, 2, 3, 4- tetrahydroxybenzene 1 often display biological activity. Aurantiogliocladin 2 and fumigatin 3 are antibiotics. 1 Coenzyme Qn) 10 4 is an essential antioxidant in humans protecting low- density lipoproteins from atherosclerosisrelated oxidative modification. 2 Dillapiole 5 is a pyrethrin synergist and responsible for the sedative effect of Perilla frutescens leaves. 3 A ...
