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  • Title: Cytotoxic diterpenoids from Pteris ensiformis.
    Author: Shi YS, Zhang Y, Hu WZ, Zhang LH, Chen X, Zhang N, Li G, Tan LY.
    Journal: J Asian Nat Prod Res; 2017 Feb; 19(2):188-193. PubMed ID: 28252343.
    Abstract:
    Phytochemistry investigation on Pteris ensiformis led to the isolation of a new ent-kaurane diterpenoid, ent-kaurane-6β,16α-diol-3-one (1), along with five known diterpenoids (2-6) and three known sesquiterpenes (7-9). Their structures were established by means of spectroscopic methods. The ethanol extract and the isolated compounds (1-9) were evaluated for their antitumor activity against three cancer cell lines.
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