Lignanamides and other phenolic constituents from the bark of kenaf (Hibiscus cannabinus).
Two new acyclic phenylpropane lignanamides, grossamide K and erythro-canabisine H, and the naphthol glucoside 2,5-dimethyl-3-O-beta-D-glucopyranosylnaphthol, along with six known compounds were isolated from the acetone extract of bark of Hibiscus cannabinus. All structures were established by spectroscopic methods including 2D NMR techniques, which allowed the correction of certain previously reported 13C NMR assignments of grossamide.
Seca
A M
AM
Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
Silva
A M
AM
Silvestre
A J
AJ
Cavaleiro
J A
JA
Domingues
F M
FM
Pascoal-Neto
C
C
D000577:Amides / Q000737:chemistry* / Q000302:isolation & purification; D017705:Lignans / Q000737:chemistry* / Q000302:isolation & purification; D019660:Malvaceae / Q000737:chemistry*; D010636:Phenols / Q000737:chemistry* / Q000302:isolation & purification; D024301:Plant Bark / Q000737:chemistry
D000577:Amides; D017705:Lignans; D010636:Phenols