Ypsilandrosides U-Y, five new steroidal saponins from Ypsilandra thibetica.
Nat Prod Bioprospect
; 12(1): 17, 2022 May 05.
Article
en En
| MEDLINE
| ID: mdl-35508749
ABSTRACT
Phytochemical reinvestigation on the whole plants of Ypsilandra thibetica obtained four new spirostanol glycosides, named ypsilandrosides U-X (1-4), and one new cholestanol glycoside, named ypsilandroside Y (5). Their structures have been established by extensive spectroscopic data and chemical methods. Among them, compound 4 is a rare spirostanol glycoside which possesses a novel 5(6 â 7) abeo-steroidal aglycone, while compound 1 is a first spirostanol bisdesmoside attached to C-3 and C-12, respectively, isolated from the genus Ypsilandra. The induced platelet aggregation activity of the isolates was tested.
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1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Nat Prod Bioprospect
Año:
2022
Tipo del documento:
Article
País de afiliación:
China