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Naturally occurring steroidal lactones with a 17α-oriented side chain. Structure of withanolide E and related compounds
Year:
1977
Authors :
אברהם, אריה
;
.
Volume :
Co-Authors:
Glotter, E., Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot, Israel
Abraham, A., Agricultural Research Organization, Volcani Center, Bet Dagon, Israel
Günzberg, G., Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel
Kirson, I., Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel
Facilitators :
From page:
341
To page:
346
(
Total pages:
6
)
Abstract:
Four related steroidal lactones of the withanolide group possessing a 17α-oriented side chain have been characterised as (17S,20S,22R)-5β, 6β-epoxy-14α,17,20-trihydroxy-1-oxowitha-2,24-dienolide [withanolide E (1)], (17S,20S,22R)-14α,17,20-trihydroxy-1-oxowitha-2,5,24-trienolide [withanolide F (2)], (17S,20S,22R)-5α,6β,-14α,17,20- pentahydroxy-1-oxowitha-2,24-dienolide [withanolide S (3)], and (17R,20R,22R)-14α,17-dihydroxy-1-oxowitha-2,5,24-trienolide [withanolide P (4)]. The structure of withanolide E deduced here has been confirmed by X-ray analysis (reported elsewhere); those of withanolide F and S are related to that of withanolide E on the basis of common degradation products. The identification of withanolide P is based on spectral analysis.
Note:
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DOI :
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Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
23367
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:58
Scientific Publication
Naturally occurring steroidal lactones with a 17α-oriented side chain. Structure of withanolide E and related compounds
Glotter, E., Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot, Israel
Abraham, A., Agricultural Research Organization, Volcani Center, Bet Dagon, Israel
Günzberg, G., Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel
Kirson, I., Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel
Naturally occurring steroidal lactones with a 17α-oriented side chain. Structure of withanolide E and related compounds
Four related steroidal lactones of the withanolide group possessing a 17α-oriented side chain have been characterised as (17S,20S,22R)-5β, 6β-epoxy-14α,17,20-trihydroxy-1-oxowitha-2,24-dienolide [withanolide E (1)], (17S,20S,22R)-14α,17,20-trihydroxy-1-oxowitha-2,5,24-trienolide [withanolide F (2)], (17S,20S,22R)-5α,6β,-14α,17,20- pentahydroxy-1-oxowitha-2,24-dienolide [withanolide S (3)], and (17R,20R,22R)-14α,17-dihydroxy-1-oxowitha-2,5,24-trienolide [withanolide P (4)]. The structure of withanolide E deduced here has been confirmed by X-ray analysis (reported elsewhere); those of withanolide F and S are related to that of withanolide E on the basis of common degradation products. The identification of withanolide P is based on spectral analysis.
Scientific Publication
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