Isolation and chemotaxonomic significance of tuberostemospironine-type alkaloids from Stemona tuberosa.

@article{Jiang2006IsolationAC,
  title={Isolation and chemotaxonomic significance of tuberostemospironine-type alkaloids from Stemona tuberosa.},
  author={Ren‐Wang Jiang and Po Ming Hon and Yan-tong Xu and Yiu-Man Chan and Hong-Xi Xu and Pang-Chui Shaw and Paul Pui-Hay But},
  journal={Phytochemistry},
  year={2006},
  volume={67 1},
  pages={
          52-7
        }
}
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TLDR
The biosynthesis, structural classification, and the intrinsic, biogenetic relationships of Stemona alkaloids are summarized in this review.
Novel Alkaloids from the Roots of Stemona sessilifolia
TLDR
Four new Stemona alkaloids, sessilistemonamines A–C (1–3, resp.) and dihydrostemoninine (4), were isolated from the roots ofStemona sessILifolia by means of in‐depth 1D‐ and 2D‐NMR‐spectroscopic as well as mass‐spectrometric experiments; and the structure of 4 was solved by X‐ray single‐crystal diffraction.
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References

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Antitussive activity of Stemona alkaloids from Stemona tuberosa.
TLDR
It is demonstrated, for the first time, that compounds 1 and 5 showed significant antitussive activities in guinea pig after cough induction by citric acid aerosol stimulation.
Chemical Studies on New Stemona Alkaloids, IV. Studies on New Alkaloids from Stemona tuberosa
TLDR
Four new alkaloids were isolated from the roots of Stemona tuberosa (Stemonaceae) and their structures were elucidated by ir, ms, and 1D- and 2D-nmr techniques including difference nOe spectra and homonuclear and heteronuclear spectral analyses.
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TLDR
A new pentacyclic Stemona alkaloid, stemocurtisinol, with a pyrido[1,2-a]azepine A,B-ring system, and the known pyrrolo-1,1-a-a zepine alkaloids, isolated from a root extract of S. curtisii showed significant larvicidal activity on mosquito larvae.
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A new main alkaloid, croomine (I), was isolated from the roots and rhizomes of Croomia heterosepala OKUYAMA (Stemonaceae). The structure was established by chemical and spectral evidences and X-ray…
Chromatographic analysis of Fritillaria isosteroidal alkaloids, the active ingredients of Beimu, the antitussive traditional Chinese medicinal herb.
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The principal alkaloid 275A in skins of the Colombian poison frog Dendrobates lehmanni has been identified as the pyrrolo[1,2-a]azepane (1), the first occurrence in nature of this "izidine" system.…
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TLDR
It became evident that Pentastemona represents a family of its own, Pentastemon Families, beside Stemonaceae, and for the genus Stemona two new combinations are proposed, and some notes on cultivated living plants are presented.
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