Natural Products from Gynura japonica
Natural Products Isolated from Gynura japonica
BioCrick provides high-purity natural products and bioactive compounds isolated and purified from natural sources for scientific research.
- Natural product compounds selected from diverse chemical and biological sources.
- Broad structural diversity and coverage of biological activities.
- Product activity information can be supported by published literature, patents and research reports.
- Natural products can be selected according to source, target, activity and disease research interests.
- Compounds should be stored according to the product specifications after receipt.
Natural Products from Gynura japonica
3 natural product s associated with Gynura japonica
| Catalog No. | Product Name | CAS Number | COA |
|---|---|---|---|
| BCN5796 |
Adenosine
|
58-61-7 | COA |
| BCN5563 |
Seneciphylline
|
480-81-9 | COA |
| BCN5890 |
Succinic acid
|
110-15-6 | COA |
References
Mass-spectrometry-directed analysis and purification of pyrrolizidine alkaloid cis/trans isomers in Gynura japonica.[Pubmed: 24840731]
Pyrrolizidine alkaloids are highly hepatotoxic natural chemicals that produce irreversible chronic and acute hepatotoxic effects on human beings. Purification of large amounts of pyrrolizidine alkaloids is necessary for toxicity studies. In this study, an efficient method for targeted analysis and purification of pyrrolizidine alkaloid cis/trans isomers from herbal materials was developed for the first time. Targeted analysis of the hepatotoxic pyrrolizidine alkaloids was performed by liquid chromatography with tandem mass spectrometry (precursor ion scan and daughter ion scan), and the purification of pyrrolizidine alkaloids was achieved with a mass-directed auto purification system. The extraction and preparative liquid chromatography conditions were optimized. The developed method was applied to analysis of Gynura japonica (Thunb.) Juel., a herbal medicine traditionally used for detumescence and relieving pain but is potentially hepatotoxic as it contains pyrrolizidine alkaloids. Twelve pyrrolizidine alkaloids (six cis/trans isomer pairs) were identified with reference compounds or characterized by liquid chromatography with tandem mass spectrometry, and five individual pyrrolizidine alkaloids, including (E)-seneciphylline, seneciphylline, integerrimine, senecionine, and seneciphyllinine, were prepared from G. japonica roots with high efficiency. The results of this work provide a new technique for the preparation of large amounts of pyrrolizidine alkaloid reference substances, which will also benefit toxicological studies of pyrrolizidine alkaloids and treatments for pyrrolizidine alkaloid-induced toxicity.
Anti-platelet aggregation and chemical constituents from the rhizome of Gynura japonica.[Pubmed: 14531028]
A novel quinonoid terpenoid, (-)- alpha-tocospirone, a new chromanone, (-)-gynuraone, as well as three new steroids, (22 E,24 S)-7 alpha-hydroperoxystigmasta-5,22-dien-3 beta-ol, (22 E,24 S)-stigmasta-1,4,22-trien-3-one, and (24 R)-stigmasta-1,4-dien-3-one, together with 15 known components, were isolated from the rhizome of Formosan Gynura japonica. Structures of the new compounds were determined through spectral analyses and chemical evidence. Several of the isolated compounds, caryophyllene oxide, 6-acetyl-2,2-dimethylchroman-4-one, vanillin, 2,6-dimethoxy-1,4-benzoquinone, and benzoic acid exhibited significant anti-platelet aggregation activity in vitro.