title: Isolation and structure elucidation of a new prenylcoumarin from Murraya paniculata var. omphalocarpa (Rutaceae).
abstract: 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.
authors.affiliation: Faculty of Pharmaceutical Sciences, Teikyo University, Kanagawa, Japan. tk-1948@pharm.teikyo-u.ac.jp
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kinoshita
authors.forename: Motoko
authors.initials: M
authors.lastname: Shimada
mesh_terms: 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
chemical_list: D003374:Coumarins; D010936:Plant Extracts; C037446:5,7-dimethoxycoumarin