Beccaridiol, an unusual 28-nortriterpenoid from the leaves of Diplectria beccariana.

@article{Jang2006BeccaridiolAU,
  title={Beccaridiol, an unusual 28-nortriterpenoid from the leaves of Diplectria beccariana.},
  author={Dae Sik Jang and B N Su and Alison D. Pawlus and Young-Hwa Kang and Leonardus B. S. Kardono and Soedarsono Riswan and Johar Juniati Afriastini and Harry H. S. Fong and John M. Pezzuto and A. Douglas Kinghorn},
  journal={Phytochemistry},
  year={2006},
  volume={67 16},
  pages={
          1832-7
        }
}
15 Citations
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References

SHOWING 1-10 OF 27 REFERENCES
Dihydrochalcones from the leaves of Pieris japonica.
TLDR
Six new dihydrochalcones were isolated from the leaves of Pieris japonica and their structures were elucidated on the basis of spectroscopic analysis including HMQC, HMBC, NOESY, and X-ray crystal diffraction.
Activity-guided isolation of constituents of Renealmia nicolaioides with the potential to induce the phase II enzyme quinone reductase.
Three new prenylated dihydrochalcones, (+/-)-nicolaioidesins A, B, and C (1-3), as well as a new natural product, 5-styrylfuran-2-carboxylic acid methyl ester (4), along with four known compounds,
Activity-guided isolation of constituents of Tephrosia purpurea with the potential to induce the phase II enzyme, quinone reductase.
TLDR
Three inactive compounds of known structure, 3'-methoxydaidzein, desmoxyphyllin B, and 3,9-dihydroxy-8-methoxycoumestan, were isolated and identified and the structure elucidation of compounds 1 and 2 was carried out by spectral data interpretation.
A new ursane triterpene from Monochaetum vulcanicum that inhibits DNA polymerase beta lyase.
TLDR
Bioassay-directed fractionation of a butanone extract of Monochaetum vulcanicum resulted in the isolation of a new triterpene and four known compounds, ursolic acid, which exhibited polymerase beta lyase activity.
Cytotoxic triterpenes from a Chinese medicine, Goreishi.
TLDR
Six additional compounds having no cytotoxic activity were isolated and a new triterpene, 3-O-trans-p-coumaroyltormentic acid, was established on the basis of X-nucleus-proton correlation with fixed evolution time (XCORFE) and other spectroscopic evidence.
Induction of quinone reductase by withanolides.
TLDR
Thirty-seven naturally occurring withanolides were evaluated for their potential to induce quinone reductase with cultured murine hepatoma cells and Spiranoid and 18-functionalized withanolide were found to be potent inducers of the enzyme, while 5alpha-substituted derivatives exhibited weak activity.
Natural inhibitors of carcinogenesis.
TLDR
Based on this large pool of potential cancer chemopreventive compounds, structure-activity relationships are discussed in terms of the quinone reductase induction ability of flavonoids and withanolides and the cyclooxygenase-1 and -2 inhibitory activities of flavanones, flavones and stilbenoids.
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