Control of the stereochemistry of C14 hydroxyl during the total synthesis of withanolide E and physachenolide C
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2018-11Rights
© The Royal Society of Chemistry 2018. Open Access Article. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported LicencePeer-Reviewed
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The stereochemical outcome of the epoxidation of Δ14–15 cholestanes with mCPBA is controlled by the steric bulk of a C17 substituent. When the C17 is in the β configuration, the epoxide is formed in the α face, whereas if the C17 is trigonal (flat) or the substituent is in the α configuration, the epoxide is formed in the β face. The presence of a hydroxyl substituent at C20 does not influence the stereochemical outcome of the epoxidation.Version
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Anees M, Nayak S, Afarinkia K et al (2018) Control of the stereochemistry of C14 hydroxyl during the total synthesis of withanolide E and physachenolide C. RSC Advances. 8(69): 39691-39695.Link to Version of Record
https://doi.org/10.1039/c8ra08540dType
Articleae974a485f413a2113503eed53cd6c53
https://doi.org/10.1039/c8ra08540d