title: Two new prenylated flavonoids from the roots of Berberis thunbergii DC.
abstract: Two new prenylated flavonoids, thunbergiols A (1) and B (2), along with three known compounds, chrysin (3), quercetin (4) and berberine (5) were obtained from the methanolic extract of roots of Berberis thunbergii DC. MS, NMR and other spectroscopic techniques were employed for their structural characterisation.
authors: a H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan.
authors: Nusrat
authors: N
authors: Hussain
authors: a H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan.
authors: Achyut
authors: A
authors: Adhikari
authors: a H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan.
authors: Malik Shoaib
authors: MS
authors: Ahmad
authors: b Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan.
authors: Atia-Tul-
authors: AT
authors: Wahab
authors: a H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan.
authors: Meher
authors: M
authors: Ali
authors: a H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan.|b Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan.|c Faculty of Science, Department of Biochemistry , King Abdulaziz University , Jeddah , Saudi Arabia.
authors: M Iqbal
authors: MI
authors: Choudhary
mesh_terms: D001599:Berberine / Q000737:chemistry / Q000302:isolation & purification; D028142:Berberis / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D054876:Prenylation; D011794:Quercetin / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D005419:Flavonoids; D010936:Plant Extracts; C000618934:thunbergiol A; C000618954:thunbergiol B; D001599:Berberine; C043561:chrysin; D011794:Quercetin
keywords: Berberis thunbergii DC.; berberine; prenylated flavonoids; thunbergiol A; thunbergiol B