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  • Title: Novel bioactive clerodane diterpenoids from the leaves and twigs of Casearia sylvestris.
    Author: Oberlies NH, Burgess JP, Navarro HA, Pinos RE, Fairchild CR, Peterson RW, Soejarto DD, Farnsworth NR, Kinghorn AD, Wani MC, Wall ME.
    Journal: J Nat Prod; 2002 Feb; 65(2):95-9. PubMed ID: 11858737.
    Abstract:
    Fractionation of a methanol extract of the leaves and twigs of Casearia sylvestris, as directed by activity against KB cell cytotoxicity, led to the isolation of three novel clerodane diterpenoids, casearvestrins A-C (1-3). The structures of 1-3 were deduced from one- and two-dimensional NMR experiments, including relative stereochemical assignments based on ROESY correlations and COSY coupling constants. All three compounds displayed promising bioactivity, both in cytotoxicity assays against a panel of tumor cell lines and in antifungal assays via the growth inhibition of Aspergillus niger in a disk diffusion assay.
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