title: Three labdane diterpenoids from Aframomum sceptrum (Zingiberaceae).
abstract: Three labdane diterpenoids, 8beta,17-epoxy-3beta,7beta-dihydroxy-12(E)-labden-16,15-olide (1), methyl 8beta,17-epoxy-3beta,7beta,15-trihydroxy-12(E)-labden-16-oate (2) and 3beta,7beta,8beta,12zeta,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.
authors: Department of Chemistry, University of Dschang, PO Box 67, Dschang, Cameroon.
authors: Christabel
authors: C
authors: Tomla
authors: Pierre
authors: P
authors: Kamnaing
authors: Godfred A
authors: GA
authors: Ayimele
authors: Eric A
authors: EA
authors: Tanifum
authors: Apollinaire
authors: A
authors: Tsopmo
authors: Pierre
authors: P
authors: Tane
authors: Johnson F
authors: JF
authors: Ayafor
authors: Joseph D
authors: JD
authors: Connolly
mesh_terms: D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry; D012639:Seeds / Q000737:chemistry; D030521:Zingiberaceae / Q000737:chemistry*
chemical_list: D004224:Diterpenes; C433017:labdane