キク科植物成分 : 数種の日本産タンポポ亜科植物新鮮根のトリテルペノイド

概要

論文の詳細を見る
Some species of the genus Taraxacum, belonging to the subfamily Cichorioideae of the family Compositae, have been used as a medicine called "Pu gong ying" in China and "Ho ko ei" in Japan for the women's mammary tumor, stomach trouble, etc. However, several plants of Ixeris, Sonchus, Lactuca and Picris genera of Cichorioideae are also used as the botanical origins of Pu gong ying in China. The lipophilic constituents of the latex consist of pentacyclic triterpenoid acetates. We herein report the triterpenoid constituents of three species of subfamily Cichorioideae, viz. Sonchus oleraceus, S. asper and Youngia japonica to compare with those of the plants belonging to Taraxacum, Ixeris and Picris. Thirty-four triterpenoids isolated from the fresh roots of these plants are summarized in Table I. The main compounds were found to be triterpenoid alcohol acetates belonging to lupane, ursane, oleanane, and migrated ursane and oleanane groups, together with the corresponding ketones, alcohols, and some acids. In addition, three tetracyclic triterpenoids, viz. butyrospermyl acetate, tirucalla-7,21-dien-3β-yl acetate and 24-methylenecycloartanone, were isolated in a small amount.
日本生薬学会の論文
1997-04-20