Three labdane diterpenoids, 8β,17-epoxy-3β,7β-dihydroxy-12(E)-labden-16,15-olide (1), methyl 8β,17-epoxy-3β,7β,15-trihydroxy-12(E)-labden- 16-oate (2) and 3β,7β,8β,12ζ,17-pentahydroxylabdan-16,15-olide (3) have been isolated from the seeds of Afromomum sceptrum K. Schum (Zingiberaceae) and their structures assigned on the basis of their spectroscopic properties. Nerolidol, and the known flavonoids 3-acetoxy-4′,5,7-trihydroxyflavanone, and 3,4′,5,7-tetrahydroxyflavanone were also obtained.

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Keywords Aframomum sceptrum, Labdane diterpenoids, Zingiberaceae
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Journal Phytochemistry
Tomla, C. (Christabel), Kamnaing, P. (Pierre), Ayimele, G.A. (Godfred A), Tanifum, E.A. (Eric A), Tsopmo, A, Tane, P. (Pierre), … Connolly, J.D. (Joseph D). (2002). Three labdane diterpenoids from Aframomum sceptrum (Zingiberaceae). Phytochemistry, 60(2), 197–200. doi:10.1016/S0031-9422(02)00075-4