1-6, AC-1-xadecane-1,3,4-triol (AC-1-10) and (2S,2ะR,3S,4R,)-2(2-hydroxytetracosanoylamino)hexadecane-1,3,4-triol (AC-1-11). 10 and AC-1-11, were isolated from the ceramide molecular species AC-1, obtained from the less polar fraction of the Positive ion FABMS/MS of each ceramide gave important info
On the structure of the major saponin from the starfish acanthaster planci
โ Scribed by Isao Kitagawa; Motomasa Kobayashi
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- French
- Weight
- 233 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
โฆ Synopsis
Recently we reported the structures of two genuine sapogenols named thornasterol A (l_) and B (3 which were obtained from a saponin mixture isolated from the whole body of starfish Acanthaster plan~i.~)
This communication provides evidence which has led us to presume the structure of the major saponin contained in the starfish.
๐ SIMILAR VOLUMES
For these years, several steroidal sapogenols and a prosapogenol have been isolated by acid hydrolysis of the saponin mixture of the starfish Acanthaster ~lanci, and their structures have been demonstrated respectively to be 5u-pregn-9(11)-ene-38,6a-diol-2O-one (A), 192) a\_ cholesta-9(11),20(22)-dl
The occurrence of toxic saponins in starfish has been known since some years ago'. They are cytotoxic, hemolytic, antiviral2 and also induce escape reaction in molluscs3. A number of steroidal aglycones produced by acid hydrolysis of star fish saponins (asterosaponins) have been characterized; all o