Title: Chemical Constituents from Inula helianthus-aquatica
Abstract: Objective:To investigate the chemical constituents of Inula helianthus-aquatica.Eleven compounds were isolated from the title plant.Method: These compounds were isolated by various chromatography methods such as silica gel,RP-18 silica gel,Sephadex LH-20 gel,HPLC,et al.Their structures were elucidated by spectral analysis like MS,NMR.Result: Seven sesquiterpene lactones were isolated and elucidated as 11α,13-dihydrotomentosin(1),sundiversifolide(2),8-epi-xanthatin-1β,5β-epoxide(3),ivaxillin(4),11,13-dehydroivaxillin(5),1β-hydroxyalantolactone(6),carabrone(7).Four triterpenes were isolated and elucidated as taraxasterol 3-O-acetate(8),maniladiol 3-O-palmitate(9),16β-hydroxylupeol 3-O-tetradecanoate(10),arnidiol(11).Conclusion: All the compounds were isolated from I.helianthus-aquatica for the first time.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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Cited By Count: 4
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