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  • Title: Yuzurimine-type alkaloids from Daphniphyllum yunnanense.
    Author: Di YT, He HP, Li CS, Tian JM, Mu SZ, Li SL, Gao S, Hao XJ.
    Journal: J Nat Prod; 2006 Dec; 69(12):1745-8. PubMed ID: 17190453.
    Abstract:
    Five new yuzurimine-type alkaloids, yunnandaphnines A-E (2-6), together with two known analogues, macrodaphniphyllamine (1) and calycinine A (7), have been isolated from the leaves and twigs of Daphniphyllum yunnanense. The structures of the new alkaloids were elucidated by spectroscopic methods. Yunnandaphnine E (6) is a novel heptacyclic yuzurimine-type alkaloid with an oxazine ring.
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