Sesquiterpene constituents of the liverwort Calypogeia muelleriana

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• 作者：Warmers ; Ute ; Wihstutz ; Kolja ; Bü ; low ; Nils ; Fricke ; Christiane ; Kö ; nig ; Wilfried A.
• 关键词：Calypogeia muelleriana ; jungermanniales ; liverwort ; sesquiterpenes ; 3-hydroxyledene ; 4 ; 5-dehydroviridiflorol ; maali-1 ; 3-diene ; stereochemical analysis ; enantioselective gas chromatography
• 刊名：Phytochemistry
• 出版年：1998
• 出版时间：November 20, 1998
• 年：1998
• 卷：49
• 期：6
• 页码：1723-1731
• 全文大小：351 K

文摘

The lipophilic constituents of the liverwort Calypogeia muelleriana were investigated. A new sesquiterpene hydrocarbon, maali-1,3-diene, and two sesquiterpene alcohols with an aromadendrane skeleton, 3-hydroxyledene and 4,5-dehydroviridiflorol, were isolated and identified. The structure elucidation was carried out mainly by NMR spectroscopic techniques (¹H-, ¹³C-, ¹H¹H-COSY-, HMQC-, HMBC- and NOESY experiments). The majority of the constituents of the liverwort volatiles show a conspicuous biogenetic relationship, which becomes even more obvious in the stereochemical correlations.