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Chemical and Pharmaceutical Bulletin
Article . 2000 . Peer-reviewed
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Chemical and Pharmaceutical Bulletin
Article . 2000 . Peer-reviewed
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Chemical and Pharmaceutical Bulletin
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Chemical and Pharmaceutical Bulletin
Article . 2000
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https://dx.doi.org/10.1248/cpb...
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Quaternary Isoquinoline Alkaloids from Stephania cepharantha.

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2000 English Publisher:Pharmaceutical Society of JapanJournal:Chemical and Pharmaceutical Bulletin, volume 48, pages 370-373 (issn: 0009-2363, eissn: 1347-5223, Copyright policy )
Authors: TANAHASHI, Takao; SU, Yuko; NAGAKURA, Naotaka; NAYESHIRO, Hidekazu;

doi: 10.1248/cpb.48.370

pmid: 10726860

Quaternary Isoquinoline Alkaloids from Stephania cepharantha.

Abstract

From the quaternary alkaloidal fraction of the dried tubers of Stephania cepharantha, two new isoquinoline alkaloids, stecepharine and tetradehydroreticuline have been isolated along with the known compounds, magnoflorine, menisperine, steponine, cyclanoline, oblongine, cis-N-methylcapaurine and 2'-N-methylisotetrandrine. cis-N-Methylcapaurine (=9-O-methylstecepharine) was isolated as a natural product for the first time. Their structures were determined on the basis of spectroscopic evidence.

Related Organizations
Keywords

China, Magnetic Resonance Spectroscopy, Plants, Medicinal, protoberberine, Optical Rotation, N-metho salt, Circular Dichroism, tubers, isoquinoline alkaloid, Menispermaceae, Isoquinolines, Methylation, Plant Roots, Stephania cepharantha, Mass Spectrometry, Alkaloids, Spectrophotometry, Ultraviolet

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    popularity
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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
35
Top 10%
Top 10%
Top 10%
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