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题名: ent-kaurane diterpenoids from Isodon rubescens collected in Guizhou Province
作者: Han, QB; null(赵勤实); null(黎胜红); Peng, LY; null(孙汉董)
刊名: ACTA CHIMICA SINICA
关键词: Isodon rubescens ; Labiabae ; 6,7-seco-7 ; 20-olide-ent-kaurane diterpenoid ; guidongnins B similar to H ; ludongnin B
英文摘要: Twelve 6, 7-seco-7, 20-olide-ent-kaurane diterpenoids, including seven new compounds named guidongnins B similar to H (1 similar to 7) and five known ones identified as ludongnin A (8), ludongnin B (9), guidongnin (10), angustifolin (11) and 6-epiangustifolin (12), were isolated from Isodon rubescens collected in Guizhou Province. On the basis of spectroscopic evidences, the new compounds were elucidated as 16 ( R)-methyl-6, 7-seco-6, 19; 7, 20-diolide-ent-kaur-15-one (1), 16 (R)-methyl-11alpha-hydroxy-6, 7-seco-6, 19; 7,20-diolide-ent-kaur-15-one (2), 16 (S)-hydroxymethyl-11alpha-hydroxy-6,7-seco-6,19;7,20-diolide-ent-kaur-15-one (3), 16(R)-methyl-6alpha-hydroxy-6, 7-seco-6,19-epoxy-7, 20-olide-ent-kaur-15-one (4), 16 (R)-methyl-6beta-hydroxy-6, 7-seco-6, 19-epoxy-7,20-olideent-kaur-15-one (5), 6beta,15beta-dihydroxy-6,7-seco-6,19-epoxy-7,20-olide-enx-kaur-16-ene (6) and 16(R)-methyl-19beta-oxymethyl-6,7-seco-6,19-epoxy-7,20-olide-ent-kaur-15-one (7), respectively. The structure of ludongnin B was revised by 2D-NMR spectra and the name of guidongnin (10) was renamed guidongnin A (10).
出版日期: 2003-07-01
卷号: 61, 期号:7, 页码:1077-1082
语种: 英语
收录类别: SCI
学科分类: Chemistry, Multidisciplinary
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/14489
Appears in Collections:植物化学与西部植物资源持续利用国家重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources W China, Kunming 650204, Peoples R China

Recommended Citation:
Han, QB,Zhao, QS,Li, SH,et al. ent-kaurane diterpenoids from Isodon rubescens collected in Guizhou Province[J]. ACTA CHIMICA SINICA,2003,61(7):1077-1082.
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