title: New anthraquinones from the stem of Morinda citrifolia Linn.
abstract: Studies on the chemical constituents of the stem of Morinda citrifolia, Linn. have led to the isolation of two new compounds, morindicinone (=2-hydroxy-1,8-dimethoxy-7-methoxymethylanthraquinone, 1) and morindicininone (=4-hydroxymethyl-1,3-dimethoxyanthraquinone, 2), as well as two known constituents, 2-hydroxyanthraquinone (3) and 2-methoxyanthraquinone (4). Their structures were elucidated by spectral analysis including 2D-NMR techniques.
authors.affiliation: International Centre for Chemical Sciences, H.E.J. Research Institute of Chemistry, and Dr Panjwani Centre for Molecular Medicine and Drug Research, University of Karachi, Karachi 75270, Pakistan. bina@khi.comsats.net.pk
authors.forename: Bina S
authors.initials: BS
authors.lastname: Siddiqui
authors.forename: Fouzia A
authors.initials: FA
authors.lastname: Sattar
authors.forename: Sabira
authors.initials: S
authors.lastname: Begum
authors.forename: Tahsin
authors.initials: T
authors.lastname: Gulzar
authors.forename: Fayaz
authors.initials: F
authors.lastname: Ahmad
mesh_terms: D000107:Acetylation; D000880:Anthraquinones / Q000737:chemistry* / Q000302:isolation & purification; D002845:Chromatography; D009682:Magnetic Resonance Spectroscopy; D000432:Methanol; D015394:Molecular Structure; D032066:Morinda / Q000737:chemistry*; D010154:Pakistan; D010936:Plant Extracts / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry*
chemical_list: D000880:Anthraquinones; D010936:Plant Extracts; C518349:morindicininone; C518350:morindicinone; D000432:Methanol