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  • Title: Daphmacromines A-J, alkaloids from Daphniphyllum macropodum.
    Author: Cao M, Zhang Y, He H, Li S, Huang S, Chen D, Tang G, Li S, Di Y, Hao X.
    Journal: J Nat Prod; 2012 Jun 22; 75(6):1076-82. PubMed ID: 22642560.
    Abstract:
    Ten new yuzurine-type Daphniphyllum alkaloids, daphmacromines A-J (1-10), along with seven known alkaloids were isolated from the leaves and stems of Daphniphyllum macropodum. Their structures were elucidated by extensive spectroscopic techniques, including 2D NMR spectroscopy and mass spectrometry, and the structure of 1 was confirmed by single-crystal X-ray diffraction. The pesticidal and cytotoxic activities of the isolated alkaloids were evaluated in vitro against brine shrimp (Artemia salina) and five human cancer cell lines (HL-60, SMMC-7721, A-549, MCF-7, and SW480), respectively. This study also suggested structural revisions of oxodaphnigracine, oxodaphnigraciline, and epioxodaphnigraciline.
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