title: A new flavanoid from the flowers of Azadirachta indica.
abstract: Studies on the chemical constituents of the flowers of Azadirachta indica have led to the isolation of one new flavanone named as azharone (5,7,4'-trihydroxy-3'-(3''-methyl-2'',3''-epoxybutyl)flavan-4-one (3)) along with two known constituents azadirone (1), and isoazadironolide (2). Their structures have been elucidated through spectral studies including 2D-NMR (COSY-45, NOESY, J-resolved, HMQC, HMBC) experiments.
authors.affiliation: H.E.J. Research Institute of Chemistry, International Centre for Chemical Sciences, University of Karachi, Karachi-75270, Pakistan. bina@khi.comsats.net.pk
authors.forename: Bina S
authors.initials: BS
authors.lastname: Siddiqui
authors.forename: Syed
authors.initials: S
authors.lastname: Tariq Ali
authors.forename: Syed
authors.initials: S
authors.lastname: Kashif Ali
mesh_terms: D031601:Azadirachta / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D010946:Plants, Medicinal / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D005419:Flavonoids