Three Withanolides (Substances A,B, and C) were isolated from the alcoholic extract of the Egyptian Withania somnifera wild plants. Substance A and substance C were identified by IR, NMR and Mass spectral data. Substance A appears to be a configurational isomer of Withanolide E and substance C is 4-hydroxy derivative of substance A. Substance A is identified as 14,17,20-trihydroxy-5B,6B-epoxy-1-oxo-Witha-2,24-dienolide (I) and substance C as 4,14,17,20-tetrahydroxy-5B, 6B-epoxy-1-oxo-witha-2,24-dienolide(II). This is the first report of isolation and characterization of substance C from Withania somnifera or the genus Withania. Substance B would be the subject of a further report.
El-Olemy, M., & Kadry, H. (1984). WITHANOLIDES OF WITHANIA SOMNIFERA L. DUNAL GROWING WILD IN EGYPT. Bulletin of Pharmaceutical Sciences Assiut University, 7(2), 430-443. doi: 10.21608/bfsa.1984.89873
MLA
M. M. El-Olemy; H. A. Kadry. "WITHANOLIDES OF WITHANIA SOMNIFERA L. DUNAL GROWING WILD IN EGYPT". Bulletin of Pharmaceutical Sciences Assiut University, 7, 2, 1984, 430-443. doi: 10.21608/bfsa.1984.89873
HARVARD
El-Olemy, M., Kadry, H. (1984). 'WITHANOLIDES OF WITHANIA SOMNIFERA L. DUNAL GROWING WILD IN EGYPT', Bulletin of Pharmaceutical Sciences Assiut University, 7(2), pp. 430-443. doi: 10.21608/bfsa.1984.89873
VANCOUVER
El-Olemy, M., Kadry, H. WITHANOLIDES OF WITHANIA SOMNIFERA L. DUNAL GROWING WILD IN EGYPT. Bulletin of Pharmaceutical Sciences Assiut University, 1984; 7(2): 430-443. doi: 10.21608/bfsa.1984.89873
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