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  • Title: A new ecdysteroid with unique 9beta-OH and four other ecdysteroids from Silene italica ssp. nemoralis.
    Author: Simon A, Pongrácz Z, Tóth G, Mák M, Máthé I, Báthori M.
    Journal: Steroids; 2004 Jun; 69(6):389-94. PubMed ID: 15219788.
    Abstract:
    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 1 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.
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