10.1248/cpb.36.178
The study investigates the synthesis, metabolism, and in vitro biological activities of 6-(10-hydroxydecyl)-2,3-dimethoxy-5-methyl-1,4-benzoquinone (CV-2619) and its related compounds. CV-2619 has been reported to suppress renal and cerebral vascular disorders in stroke-prone spontaneously hypertensive rats and alleviate abnormal energy metabolism induced by cerebral ischemia. Its in vitro biological activities include electron transfer activity in the mitochondrial respiratory chain and antioxidant activity in mitochondrial and microsomal membranes. The study synthesizes demethyl derivatives (3a, 3b, and 4) and compounds with modified hydroxyalkyl chains (13, 20, 21, 23a, and 23b) for metabolic studies and biological activity evaluation. In rats, compounds 13 and trans-23a are metabolized more slowly than CV-2619. Except for the demethyl derivatives, these compounds show comparable electron transfer effects to CV-2619 in the succinate oxidation system and inhibit lipid peroxidation in rat liver homogenate. The study aims to develop derivatives with prolonged plasma levels and maintained biological activities.