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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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KIB OpenIR

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资助项目：The thesis has elaborated studies on the alkaloids from two Daphniphyllum species, the fruits of Daphniphyllum longeracemosum Rosenth. and the twigs and lesves of Daphniphyllum macropodum Miq. By variety of chromatographies over various materials, fourty-four alkaloids including four new ones were acquired from these two plants. Their structures were identified by spectroscopic analysis (NMR, MS, IR, UV) including four new ones.Chapter 1 Alkaloids from Daphniphyllum longeracemosum Rosenth.Thirty alkaloids including four new Daphniphyllum alkaloids were isolated from the fruits of D. longeracemosum Rosenth. Their structures are diverse, which could be classified into eight different skeletons, but the Yuzurine-type and Calyciphylline A-type alkaloids are major. At the same time, three iridoid alkaloids were obtained distinguished with ones isolated from this genus previously.Chapter 2 Alkaloids from Daphniphyllum macropodum Miq..Fourteen Daphniphyllum alkaloids were isolated from the twigs and leaves of D. macropodum Miq. together one other kind of compound. Among them, structures of thirteen alkaloids were determined, and seven compounds were all C-30 type Daphniphyllum alkaloids.Chapter 3 Review.The Daphniphyllum alkaloids reported were reviewed since 2007.

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