A new ecdysteroid with unique 9β-OH and four other ecdysteroids from Silene italica ssp. nemoralis
作者： András Simon , Zita Pongrácz , Gábor Tóth , Marianna Mák , Imre Máthé
DOI: 10.1016/J.STEROIDS.2004.03.009
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摘要: A new natural ecdysteroid, 9beta,20-dihydroxyecdysone (1) and four related compounds 5alpha-20-hydroxyecdysone (2), 5alpha-2-deoxy-integristerone (3), integristerone (4) 22-deoxy-integristerone (5) were isolated from the herb of Silene italica ssp. nemoralis. Compound 1 is C-9 epimer known 9alpha,20-dihydroxyecdysone (6) represents a peculiar steroid skeleton. The structures elucidated by 1D 2D NMR, IR MS spectroscopy.
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