Online article for Non-subscribers

Pay per view

Heterocycles has a pay-per-view service for Non-subscribers.
You will be able to directly purchase the full text article through PayPal.
Your purchased Paper can be downloaded after the payment is completed.
An e-mail will be sent the URL to download the paper.
If you have any questions, please contact: purchase@heterocycles.com

Price: ¥ 4,320 (Yen only)
Period: This Article can be accessed for 7 days.

Paper | Regular issue | Vol 34, No. 4, 1992, pp.689-698
Published online, 1st January, 1970
DOI: 10.3987/COM-91-5791
Two New Withanolides from Withania somnifera

Atta-ur-Rahman,* S. Arshad Jamal, and M.Iqbal Choudhary*

*H. E. J. Research Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan

Abstract

Two new withanolides, sominone (1α,3β,27-trihydroxy-22(R)-witha-5,24-dienolide) (1) and sominolide (4β,27-dihydroxy-14α,15α-epoxy-1-oxo-22-(R)-witha-2,24-dienolide) (2) were isolated from the herbs of Withania somnifera Dun. (Solanaceae). The elucidation of their structures is based on extensive spectroscopic studies.