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题名: Biogenetically related caged ent-kaurane diterpenoids from Isodon eriocalyx var. laxiflora
作者: Wang, Wei-Guang1, 2; Li, Xiao-Nian1; Du, Xue1; Dong, Ke1; Zhao, Wei1; Wu, Hai-Yan1; Kong, Ling-Mei1; null(李艳)1; Pu, Jian-Xin1; null(孙汉董)1
刊名: TETRAHEDRON LETTERS
关键词: Caged diterpenoid ; ent-Kaurane ; Isodon eriocalyx var. laxiflora
英文摘要: Two novel caged ent-kauranoids, neolaxiflorins D (1) and E (2), along with three other new ent-kauranoids, neolaxiflorins F-H (3-5), and a known one, eriocalyxin B (6), were obtained from lsodon eriocalyx var. laxiflora. Neolaxiflorin D (1) is the first 15,16-seco-16,17-dinor-ent-kaurane diterpenoid, and neolaxiflorin E (2) is the first 15,16-seco-17-homo-ent-kauranoid. The absolute configurations of ent-kauranoids 1 and 2 were determined by single-crystal X-ray diffraction analyses. Structural analysis of intermediate compounds 3-5 indicated that eriocalyxin B (6) is a biogenetic precursor of caged ent-kauranoids 1 and 2 as illustrated. The cytotoxic activity of the new compounds was evaluated by an MIT assay. (C) 2012 Elsevier Ltd. All rights reserved.
出版日期: 2012-05-30
卷号: 53, 期号:22, 页码:2777-2781
语种: 英语
收录类别: SCI ; IC
学科分类: Chemistry
ISSN号: 0040-4039
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/17609
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
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

Recommended Citation:
Wang,Wei-Guang;Li,Xiao-Nian;Du,Xue;Dong,Ke;Zhao,Wei;Wu,Hai-Yan;Kong,Ling-Mei;Li,Yan;Pu,Jian-Xin;Sun,Han-Dong.Biogenetically related caged ent-kaurane diterpenoids from Isodon eriocalyx var. laxiflora,TETRAHEDRON LETTERS,2012,53(22):2777-2781
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