Sesquiterpene hydrocarbons in the liverwort Dumortiera hirsuta
1998
Saritas, Y. | Bulow, N. | Fricke, C. | Konig, W.A. | Muhle, H.
From a sample of the liverwort Dumortiera hirsuta (Sw.) Nees collected near Sao Francisco de Paula, Rio Grande do Sul (Brazil) a series of sesquiterpene hydrocarbons was isolated by preparative gas chromatography (GC) and investigated by spectroscopic methods and 2-dimensional GC (2D-GC) using a combination of a conventional polysiloxane capillary column and a capillary with a cyclodextrin derivative. Some rare sesquiterpenes such as (-)-cyclosativene, (+)-beta-copaene, (-)-aristolochene, (+)-aciphyllene and (-)-isoguaiene were identified as well as the unusual enantiomers (+)-alpha-copaene, (+)-cis- alpha-bergamotene, (+)-trans-alpha-bergamotene, (+)-alpha-guaiene, (+)-guaia-6,9-diene and (+)-beta-caryophyllene.
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