Sesquineolignans and other constituents from the seeds of Joannesia princeps.
From the methanolic extract of the seeds of the Brazilian Joannesia princeps 3,3'-bisdemethylpinoresinol and six new sesquineolignans were isolated besides the known neolignans americanol A, isoamericanol A and isoamericanin A which were found to be the major constituents. A method was developed to distinguish americanol- from isoamericanol-type compounds spectroscopically.
Waibel
Reiner
R
Department of Pharmaceutical Chemistry, Institute of Pharmacy and Food Chemistry, University of Erlangen, Schuhstr 19, D-91052, Erlangen, Germany. waibel@pharmazie.uni-erlangen.de
Benirschke
Gerd
G
Benirschke
Monika
M
Achenbach
Hans
H
D004146:Dioxanes / Q000737:chemistry / Q000302:isolation & purification; D004147:Dioxins / Q000737:chemistry / Q000302:isolation & purification; D019665:Euphorbiaceae / Q000737:chemistry* / Q000145:classification; D007536:Isomerism; D017705:Lignans / Q000737:chemistry* / Q000302:isolation & purification; D019906:Nuclear Magnetic Resonance, Biomolecular; D012639:Seeds / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
D004146:Dioxanes; D004147:Dioxins; D017705:Lignans; C055021:americanin A; C074373:americanol A