A new ecdysteroid with unique 9β-OH and four other ecdysteroids from Silene italica ssp. nemoralis
A new natural ecdysteroid, 9beta,20-dihydroxyecdysone (1) and four related compounds 5alpha-20-hydroxyecdysone (2),5alpha-2-deoxy-integristerone A (3), integristerone A (4) and 22-deoxy-integristerone A (5) were isolated from the herb of Silene italica ssp. nemoralis. Compound I is the C-9 epimer of...
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Dokumentumtípus: | Cikk |
Megjelent: |
2004
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Sorozat: | STEROIDS
69 No. 6 |
doi: | 10.1016/j.steroids.2004.03.009 |
mtmt: | 2638265 |
Online Access: | http://publicatio.bibl.u-szeged.hu/19246 |
Tartalmi kivonat: | A new natural ecdysteroid, 9beta,20-dihydroxyecdysone (1) and four related compounds 5alpha-20-hydroxyecdysone (2),5alpha-2-deoxy-integristerone A (3), integristerone A (4) and 22-deoxy-integristerone A (5) were isolated from the herb of Silene italica ssp. nemoralis. Compound I is the C-9 epimer of the known 9alpha,20-dihydroxyecdysone (6) and represents a peculiar steroid skeleton. The structures of the compounds were elucidated by 1D and 2D NMR, IR and MS spectroscopy. (C) 2004 Elsevier Inc. All rights reserved. |
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Terjedelem/Fizikai jellemzők: | 389-394 |
ISSN: | 0039-128X |