New ent-kaurane diterpenoids from isodon rubescens

Chin. J. Org. Chem. ›› 2003, Vol. 23 ›› Issue (3): 270-273. Previous Articles Next Articles

冬凌草中的新对映-贝壳杉烷二萜化合物

韩全斌;梅双喜;姜北;赵爱华;孙汉黄

中国科学院昆明植物研究所

发布日期:2003-03-25

New ent-kaurane diterpenoids from isodon rubescens

Han Quanbin;Mei Shuangxi;Jiang Bei;Zhao Aihua;Sun Handong

State Key Laboratory of Phytochemistry and Plant Resources in West China,Kunming Institute of Botany,Chinese Academy of Sciences

Published:2003-03-25

Abstract

Two new ewi-kaurane diterpenoids, 16 ( S)-hydroxymethyl-la , 6β, 7 β, llβ-tetrahydroxy-7a , 20-epoxy-eni-kauran-15-one (1) and 16 ( R )- hydroxymethyl-la , 6β, 7β, 14βtetrahydroxy-7a , 20-epoxy-enf-kauran- 15-one (2) , named rubescensins F (1) and G (2) , respectively, were isolated from the EtOAc extract of the dried leaves of hodon rubescens (Hemsl.) Kara collected in Jiyuan Prefecture, Henan Province, together with fourteen known compounds lasiodonin (3), oridonin (4) , ponicidin, rubescensins C and D, rabdoternin C, wikstroemioidin B, enmenol-la-0-β -.D-glucoside, enmenol, pedalitin, salicylic acid, ursolic acid, β sitosterol and daucosterol. Their structures were determined on the basis of spectral data.

Key words: RABDOSIA RUBESCENS (HEMSL) HARA, DITERPENES, STEROL, CHEMICAL COMPOSITION

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Cite this article

Han Quanbin;Mei Shuangxi;Jiang Bei;Zhao Aihua;Sun Handong. New ent-kaurane diterpenoids from isodon rubescens[J]. Chin. J. Org. Chem., 2003, 23(3): 270-273.

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冬凌草中的新对映-贝壳杉烷二萜化合物

New ent-kaurane diterpenoids from isodon rubescens

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