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中国科学院昆明植物研究所知识管理系统
Knowledge Management System of Kunming Institute of Botany,CAS
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昆明植物所硕博研究生... [1]
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2010 [1]
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发表日期:2010
资助项目:The thesis has investagated on alkaloids in the fruits of three Daphniphyllum species Daphniphyllum longeracemosum, D. oldhami, and D. himalense, along with chemical compounds from leaves of Trichilia connaroides and Mitrephora maingayi. 83 compounds in total were acquired from those five plants and their structures were identified by organic spetra (NMR, MS, IR.), including two novel Daphniphyllum alkaloids, another three new ones, twelve new limonoids, a new steroids and a new acetogenin. Seventeen Daphniphyllum alkaloids were acquiered from Daphniphyllum longeracemosum, including two novel ones (Daphenylline and Longeramine) and another new alkaloid N-oxydaphnilongeranin C. Eighteen alkaloids were isolated from D. oldhamii, including two new alkaloids Daphnoldines A and B. Eleven alkaloids were afforded from D. himalense fruits.From Trichilia connaroides leaves, 22 compounds were afforded, including 12 new limonoids and a new steroid. 15 compounds were isolated from Mitrephora maingayi twigs and leaves, including a new annonaceous acetogenin.Furthermore, biological functions of Daphniphyllum alkaloids were initially seeked after based on their relation to squalene metabolism pathway. The alkaloids Longistylumphylline B and Paxdaphnine B were detected inhibtion against nAchR (a target protein for pesticide) from Drosophila. Furthermore, a phragmalin-type limonoid 30-acetyltrichagmalin F showed a moderate anti-PAF activity.In addition, squalene metabolism pathway along with its natual inhibitor and analogs were reviewed. The pathway was prospected as potential targets for antihyperlipoproteinemic drugs, pesticide, antifeedant or antifungal drugs.
专题:昆明植物所硕博研究生毕业学位论文
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虎皮楠属植物中生物碱成分以及鹧鸪花和山蕉中化学成分研究
学位论文
: 中国科学院研究生院, 2010
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提交时间:2013/01/28