Previously, we have described (1) that acid hydrolysis of the crude soponin obtained from the root of Bupleurum falcotum L. afforded saikogenins A (I), isolation of which was first reported by Shibato et al. (2), B (II), C (III) and D (IV) ond longispinogenin. Recently, Aimi and Shibota (3) and the
Isolation of saikogenin E, a new triterpene from Bupleurum Falcatum L.
β Scribed by Tokuo Kubota; Hiroshi Hinoh
- Publisher
- Elsevier Science
- Year
- 1966
- Tongue
- French
- Weight
- 141 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
In o recent communication (I), we have described that acid hydrolysis of the crude saponin obtained from the root of Bupleurum falcotum L. afforded four new
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Recently, we have isolated saikogenins E (1, 2), F (3) and G (4) as the genuine sapogenins of the root of Bupieurum falcatum L. and demonstrated (4) that the parent saponins corresponding to these sapogenins are saikosaponins 2,~ and d (5), which on TLC using silica gel G and AcOEt-EtOH-Hz0
Most recently, Shibata et al. (1) have reported isolation of saikogenin A, a major sapogenin of the root of Bupleurum falcatum L., and proposed the partial structure (A) for it. The report prompts us to describe our result on triterpenoid sapogenins of the same saurce. Acid hydrolysis of crude sapon
We report here a successful example of organic structure determination whichrequires several steps of chemical procedure and has readily been performed using 13C NMR spectroscopy without chemical degradations. Triterpenoid glycosides, saikosaponin-a (3, -b,--b,, -c, -d (2, and -f were already isolat
From an ethereal extract of the seeds of Ilex rotunda, a new triterpene acid (Ta) has been isolated. We have named this new triterpene, rotundic acid. The crude extract was esterified with diazomethane, and the resulted. product was worked up on silica gel chromatography. This procedure yielded me
## Abstract Centrifugal partition chromatography (CPC) coupled with evaporative light scattering detection (ELSD) was applied to separate saikosaponinsβa and βc preparatively from __Bupleurum falcatum__ roots. The twoβphase solvent system composed of ethyl acetate/__n__βbutanol/methanol/water (15:1