Characterization of Three Labdane Diterpenes from Aframomum alboviolaceum

M. Marlier; G. Le Guellec; G. Lognay; J.-P. Wathelet; M. Severin

doi:10.1055/s-2006-959731

Planta Medica, Inhaltsverzeichnis

Planta Med 1993; 59(5): 455-457
DOI: 10.1055/s-2006-959731

Paper

Characterization of Three Labdane Diterpenes from Aframomum alboviolaceum

M. Marlier, G. Le Guellec, G. Lognay, J. -P. Wathelet, M. Severin

Faculty of Agricultural Sciences, Department of General and Organic Chomistry, 2, Passage des Déportés, B-5030 Gembloux, Belgium

Abstract

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Abstract

Two labdane diterpenes were isolated from the seeds and the rhizomes of Aframomum alboviolaceum (Ridley) K. Schum (Zingiberaceae) and identified by GC-MS, ¹H-, and ¹³C-NMR as (E)-labda-8(17),12-diene-15,16-dial (1) and (E)β,17-epoxy-labd-12-ene-15,16-dial (2). A third minor compound could be the methyl (E)-14ξ,15-epoxylabd-8(17),12-dien-16-oate. The simultaneous occurrence of these three molecules has been mentioned only in one other species of the same genus, Aframomum daniellii (1).

Key words

Aframomum alboviolaceum - labdane diterpenes - Zingiberaceae

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