Isolation and structure elucidation of a new prenylcoumarin from Murraya paniculata var. omphalocarpa (Rutaceae).
A new C-8 prenylated 5,7-dimethoxycoumarin named omphamurrayin was isolated from the leaves of Murraya paniculata var. omphalocarpa, and its structure was established as 5,7-dimethoxy-8-(1-oxo-2-senecioyl-3-methyl-3-butenyl)-2H-1-benzopyran-2-one on the basis of the spectroscopic evidence. The taxonomic status of M. paniculata var. omphalocarpa is briefly discussed, along with its synonymity to M. paniculata from the chemosystematic viewpoint.
Kinoshita
Takeshi
T
Faculty of Pharmaceutical Sciences, Teikyo University, Kanagawa, Japan. tk-1948@pharm.teikyo-u.ac.jp
Shimada
Motoko
M
D002850:Chromatography, Gel; D003374:Coumarins / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry; D027821:Rutaceae / Q000737:chemistry* / Q000145:classification; D013056:Spectrophotometry, Ultraviolet
D003374:Coumarins; D010936:Plant Extracts; C037446:5,7-dimethoxycoumarin