冬凌草中的新对映-贝壳杉烷二萜化合物 |
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引用本文: | 韩全斌,梅双喜,姜北,赵爱华,孙汉董. 冬凌草中的新对映-贝壳杉烷二萜化合物[J]. 有机化学, 2003, 23(3): 270-273 |
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作者姓名: | 韩全斌 梅双喜 姜北 赵爱华 孙汉董 |
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作者单位: | 中国科学院昆明植物研究所植物化学与西部植物资源国家重点实验室,昆明,650204 |
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摘 要: | 对河南省济源地区产冬凌草[Isodon rubescens(Hemsl.)Hara]再次进行了深入 的研究,从其叶的乙酸乙酯提取物中分离得到了16个化合物,其中1和2为两个新的 7,20-环氧-对映-贝壳杉烷类二萜化合物,其结构通过波谱分析确定为16(S)-羟 甲基-1α,6β,7β,11β-甲羟基-7α,20-环氧-对映-贝壳杉烷-15-酮(1)和 16(R)-羟甲基-1α,6β,7β,14β-四羟基-7α,20-环氧-对映-贝壳杉烷-15- 酮(2),分别命名为冬凌草已素(1)和庚素(2);其余的已知化合物分别鉴定 为lasiodonin(3),冬凌草甲素(oridonin,4),乙素(ponicidin),丙素( rubescensin C),丁素(rubescensin D),牛尾草丙素(rabdoternin C),荛 花香茶菜乙素(wikstroemioidin B),enmenol-1α-O-β-D-glucoside, enmenol,胡麻素(pedalitin),水杨酸,乌索酸,β-谷甾醇和胡萝卜甙。
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关 键 词: | 冬凌草 二萜 甾醇 化学成分 |
修稿时间: | 2002-05-06 |
New ent-kaurane diterpenoids from isodon rubescens |
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Affiliation: | State Key Laboratory of Phytochemistry and Plant Resources in West China,Kunming Institute of Botany,Chinese Academy of Sciences |
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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. |
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Keywords: | Isodon rubescens Labiatae ent kaurane diterpenoids rubescensins F and G |
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