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  • Title: ent-kaurane diterpenoids from Isodon lungshengensis.
    Author: Jiang B, Lu ZQ, Hou AJ, Zhao QS, Sun HD.
    Journal: J Nat Prod; 1999 Jul; 62(7):941-5. PubMed ID: 10425112.
    Abstract:
    Six new ent-kaurane diterpenoids, lungshengenins B-G (1-6), together with three known diterpenoids, lungshengenin A (7), inflexin (8), and lushanrubescinsin C (9), were isolated from the leaves and tender branches of Isodon lungshengensis. Their structures were elucidated by means of spectroscopy, mainly 1D and 2D NMR techniques. Lungshengenins A (7), C (2), and G (6) were cytotoxic toward K562 cells, having IC(50) values equal to or less than 10 microg/mL.
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