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Acanthopanax divaricatus Seem. is a medicinal plant growing widely through out Korea, Japan and China. The plant material of Acanthopanax spp. is used as analgesic, tonic, sedative drug as well as for the treatment of hypertension, rheumatism and diabetes. From the stem barks and root barks of A. divaricatus, diterpenoid compound was isolated and identified as pamaric acid (C20H30O2, mp 164oC), lignan compounds were isolated and identified as d-sesamin (C20H18O6, mp 123-124oC), eletheroside E (C34H46O18, mp 257-259oC), three sterol compounds were identified as beta-sitosterol, campesterol, stigmasterol, and six fatty acid compounds were identified as stearic acid, palmitic acid, oleic acid, linolenic acid, arachidonic acid and behenic acid. And also leaves of A. divaricatus, chiisanoside were identified, one of secotriterpenoidal compound(white amorphorous powder crystal, mp 228oC). Anticancer activity and nephrotoxicity were tested by MTT assay. Anticancer effect of chiisanoside was much lower than that of cisplatin.
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