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Volume No. :   4

Issue No. :  5

Year :  2012

ISSN Print :  0975-2331

ISSN Online :  0975-4385


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Tribulin, a New Steroidal Saponin from the Aerial parts of Tribulus terrestris



Address:   Mamdouh N. Samy1*, Mokhtar M. Bishr2, Ahmed A. Ahmed3 and Mohamed S. Kamel1
1Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia 61519, Egypt.
2Research and Development Department, Mepaco Company, Cairo, 11361, Egypt.
3Department of Organic Chemistry, Faculty of Sciences, Minia University, Minia 61519, Egypt.
*Corresponding Author:
DOI No:

ABSTRACT:
From the aerial parts of Tribulus terrestris, a new steroidal saponin, Diosgenin 3-O-[{?-L-rhamnopyranosyl-(1?3)} {?-L-rhamnopyranosyl-(1?4)}]-?-D-glucopyranosyl-(1?4)-?-D-glucopyranoside namely tribulin has been isolated together with six known compounds; scoparon, campesterol, stigmasterol, ß-sitosterol, Diosgenin 3-O-[{?-L-rhamnopyranosyl-(1?4)-?-D-glucopyranoside and D-(+)-pinitol. The structure of the new saponin was elucidated on the basis of spectroscopic analyses including 1D-NMR and mass spectroscopy (EI-MS) and chemical reactions.
KEYWORDS:
Tribulus terrestris, Zygophyllaceae, Steroidal saponin, Tribulin
Cite:
Mamdouh N. Samy, Mokhtar M. Bishr, Ahmed A. Ahmed , Mohamed S. Kamel. Tribulin, a New Steroidal Saponin from the Aerial parts of Tribulus terrestris. Research J. Pharmacognosy and Phytochemistry 2012; 4(5): 237-239.
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