Ecdysteroids from Silene viridiflora

✍ Scribed by András Simon; Noémi Tóth; Gábor Tóth; Zoltán Kele; Judit Groska; Mária Báthori

• Book ID: 102257690
• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: German
• Weight: 213 KB
• Volume: 92
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.200800362

✦ Synopsis

Abstract

magnified image

Two new ecdysteroid acetonide derivatives, 5__α__‐2‐deoxy‐20‐hydroxyecdysone 20,22‐acetonide (6) and makisterone C 2,3;20,22‐diacetonide (8), were isolated from the dried herb of Silene viridiflora. The already known 5__β__‐2‐deoxy‐20‐hydroxyecdysone 20,22‐acetonide (7) is additionally reported here as a new constituent of S. viridiflora. Five earlier described S. viridiflora ecdysteroids, integristerone A (1), 5,20,26‐trihydroxyecdysone (26‐hydroxypolipodine B; 2), 20,26‐dihydroxyecdysone (3), 2‐deoxy‐20‐hydroxyecdysone (4), 2‐deoxyintegristerone A (5), are also included because of their improved characterization. The structures were established via spectroscopic analyses, including one‐ and two‐dimensional NMR and mass spectrometry.