Author/Authors :
Yuan-Wah Leong، نويسنده , , Leslie J Harrison، نويسنده , , Joseph D Connolly، نويسنده , , Lambert K. Smedema, Willem F. Vlotman, David W. Rycroft، نويسنده , , Selma Dagli، نويسنده ,
Abstract :
Four oxygenated amorphane derivatives [(−)-(1R,2S,6R,10S)-2α-acetoxyamorpha-4,7(11)-dien-8-one, (−)-(1R,2S,6R,10S)-2α-acetoxy-11-methoxyamorpha-4,7-diene, (−)-(1R,2R,3S,6R,10S)-2α,3α-diacetoxyamorpha-4,7(11)-dien-8-one and (−)-(1R,2R,3R,6R,9S,10R)-2α,3α-diacetoxy-9α-hydroxyamorpha-4,7(11)-dien-8-one] have been isolated from the Scottish liverwort Marsupella emarginata var. aquatica. Their structures were determined following extensive (mainly 1D and 2D NMR) spectroscopic studies.
Keywords :
Natural products , Marsupella , Hepaticae , terpenes and terpenoids
