title: Flavonoids from Tephrosia major. A new prenyl-beta-hydroxychalcone.
abstract: The roots and aerial parts of Tephrosia major Micheli, afforded a new prenylated-beta-hydroxychalcone, characterized as 2',6'-dihydroxy-3'-prenyl-4'-methoxy-beta-hydroxychalcone. In addition, seven prenylated flavonoids, two rotenoids, beta-sitosterol, stigmasterol, lupeol and quercetin were isolated. The structure of the new beta-hydroxy chalcone was established by spectroscopic methods, including 2D NMR experiments.
authors.affiliation: Instituto de Química de la Universidad Nacional Autónoma de México Circuito Exterior, Ciudad Universitaria, Coyoacán, DF.
authors.forename: Federico
authors.initials: F
authors.lastname: Gómez-Garibay
authors.forename: Oswaldo
authors.initials: O
authors.lastname: Téllez-Valdez
authors.forename: Gregorio
authors.initials: G
authors.lastname: Moreno-Torres
authors.forename: José S
authors.initials: JS
authors.lastname: Calderón
mesh_terms: D002599:Chalcone / Q000031:analogs & derivatives / Q000737:chemistry* / Q000302:isolation & purification; D047188:Chalcones; D007887:Fabaceae / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D006131:Growth Inhibitors / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D018514:Plant Structures / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: C466768:2',6'-dihydroxy-3'-prenyl-4'-methoxy-beta-hydroxychalcone; D047188:Chalcones; D005419:Flavonoids; D006131:Growth Inhibitors; D002599:Chalcone