Pinguisane-type sesquiterpenes from the South American liverwort Porella recurva (Taylor) Kuhnemann.
نویسندگان
چکیده
The chemical composition of a dichloromethane extract of the South American liverwort Porella recurva has been examined. Two new pinguisane-type norsesquiterpenoid natural products were isolated: 6,11-epoxy-15-nor-3,4-dioxo-5,10-pinguisadien-12-acetate and 6,11-epoxy-15-nor-4-oxo-5,10-pinguisadien-12-acetate. In addition two known pinguisane-type sesquiterpenes were also isolated: norpinguisone and norpinguisone methyl ester. All structures were elucidated by means of NMR spectroscopic techniques and mass spectrometry.
منابع مشابه
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ورودعنوان ژورنال:
- Zeitschrift fur Naturforschung. C, Journal of biosciences
دوره 57 5-6 شماره
صفحات -
تاریخ انتشار 2002