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A Xanthone Dixylopyranoside from Swertia thomsonii

  • Viqar Uddin Ahmad EMAIL logo , Inayat-ur- Rahman , Murad Ali Khana , Muhammad Arfan and Mohammad Tariq Siddiqui
Published/Copyright: June 2, 2014
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Zeitschrift für Naturforschung B
From the journal Zeitschrift für Naturforschung B Volume 57 Issue 1

A xanthone dixylopyranoside has been isolated from Swertia thomsonii C. B. Clarke and its structure established as 1,7-dihydroxy-3,8-dimethoxyxanthone 1-O-[β-D-xylopyranosyl- (1→4)D-xylopyranoside on the basis of spectral evidence, particularly 2D NMR studies. Three known compounds, 1,7-dihydroxy-3,8-dimethoxyxanthone, swertianin (1,7,8-trihydroxy- 3-methoxy-xanthone) and ursolic acid were also isolated from this species.

Keywords: Swertia thomsonii; Gentianaceae; Xanthone Xylopyranoside
Received: 2002-6-28
Published Online: 2014-6-2
Published in Print: 2002-1-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

Articles in the same Issue

  1. The Structure Directing Effect of Hydrogen Bonding in the Novel Polymeric Thioantimonate Mn2(H2N(CH2)2NH2)2Sb2S5
  2. peri-Interactions in Naphthalenes, 6 [1]. On Hypercoordination of Phosphorus in 8-Dialkylamino-naphth-1-yl Phosphonium Salts
  3. Synthesis, Properties and Dimerization Study of Isocyanic Acid
  4. Bleispezies PbX und PbX2 als Brückenliganden in übergangsmetallorganisch geschützten Koordinationsverbindungen/ Leadspecies PbX and PbX2 as Bridging Ligands in Organometallic Protected Coordination Compounds
  5. Crystal Structure and Vibrational Behaviour of Aqua Di(saccharinato)di(nicotinamide)copper(II)
  6. Metallkomplexe eines Methoxyalkyl-funktionalisierten 2,3-Dihydroimidazol-2-ylidens/ Metal Complexes of a Methoxyalkyl Functionalized 2,3-Dihydroimidazol-2-ylidene
  7. Platinum(II) and Palladium(II) Dichalcogenolene Complexes Containing the Ligand Tri(1-cyclohepta-2,4,6-trienyl)phosphane. Molecular Structure, Intramolecular Dynamics in Solution, and the Absolute Signs of Coupling Constants 1J(195Pt, 77Se) and 2J(77Se, Pt, 31P)
  8. Secondary Bonding Interactions in Some Haloanilinium Halides
  9. Secondary Bonding Interactions in Some Dichloroanilinium Chlorides
  10. Neue bifunktionelle Silazane und ihr Kondensationsverhalten: 3-Methyl-2,2,4,4-tetrakis(methylamino)-1-phenyl-[1,3,2,4]diazadisiletidin, 1,3-Dichloro-2-phenyl-1,1,3,3-tetrakis(dimethylamino)disilazan, 3-Methyl-2,2,4,4-tetrakis(dimethylamino)-1-phenyl-[1,3,2,4]diazadisiletidin und 2,2,4,4-Tetrakis(dimethylamino)-1-phenyl-[1,3,2,4]diazadisiletidin/New Bifunctional Silazanes and their Condensation Reactions: 3-Methyl-2,2,4,4-tetrakis(methylamino)-1-phenyl-[1,3,2,4]diazadisiletidine, 1,3-Dichloro-2-phenyl-1,1,3,3-tetrakis(dimethylamino)disilazane, 3-Methyl-2,2,4,4-tetrakis(dimethylamino)-1-phenyl-[1,3,2,4]diazadisiletidine and 2,2,4,4-Tetrakis(dimethylamino)-1-phenyl-[1,3,2,4]diazadisiletidine
  11. Spectroelectrochemical Investigation of Pentacarbonyl(pyrazine)metal(0) (Metal = Cr, Mo, W) Complexes of Group 6 Elements
  12. N,N′-Bis(silyl)ethylendiamine und 1,3-Diaza-2-silacyclopentane – Synthese, Reaktionen, Strukturen/ N,N′-Bis(silyl)ethylenediamines and 1.3-Diaza-2-silacyclopentanes – Synthesis, Reactions, Crystal Structures
  13. Synthesis and Separating Properties of Tris(Merrifield Peptide Resin)
  14. Polysulfonylamine, CL [1]. Wasserstoffbrücken in kristallinen Oniumdimesylamiden: Ein robustes Achtring-Synthon in den Strukturen von Methyluronium- und 1,1-Dimethyluronium-dimesylamid./Polysulfonylamines, CL [1]. Hydrogen Bonding in Crystalline Onium Dimesylamides: A Robust Eight-Membered Ring Synthon in the Structures of Methyluronium and 1,1-Dimethyluronium Dimesylamide
  15. A Xanthone Dixylopyranoside from Swertia thomsonii
  16. Synthesis and EPR Evaluation of the Nitrone PBN-[tert-13C] for Spin Trapping Competition
https://doi.org/10.1515/znb-2002-0115
Keywords for this article
Swertia thomsonii; Gentianaceae; Xanthone Xylopyranoside

Articles in the same Issue

  1. The Structure Directing Effect of Hydrogen Bonding in the Novel Polymeric Thioantimonate Mn2(H2N(CH2)2NH2)2Sb2S5
  2. peri-Interactions in Naphthalenes, 6 [1]. On Hypercoordination of Phosphorus in 8-Dialkylamino-naphth-1-yl Phosphonium Salts
  3. Synthesis, Properties and Dimerization Study of Isocyanic Acid
  4. Bleispezies PbX und PbX2 als Brückenliganden in übergangsmetallorganisch geschützten Koordinationsverbindungen/ Leadspecies PbX and PbX2 as Bridging Ligands in Organometallic Protected Coordination Compounds
  5. Crystal Structure and Vibrational Behaviour of Aqua Di(saccharinato)di(nicotinamide)copper(II)
  6. Metallkomplexe eines Methoxyalkyl-funktionalisierten 2,3-Dihydroimidazol-2-ylidens/ Metal Complexes of a Methoxyalkyl Functionalized 2,3-Dihydroimidazol-2-ylidene
  7. Platinum(II) and Palladium(II) Dichalcogenolene Complexes Containing the Ligand Tri(1-cyclohepta-2,4,6-trienyl)phosphane. Molecular Structure, Intramolecular Dynamics in Solution, and the Absolute Signs of Coupling Constants 1J(195Pt, 77Se) and 2J(77Se, Pt, 31P)
  8. Secondary Bonding Interactions in Some Haloanilinium Halides
  9. Secondary Bonding Interactions in Some Dichloroanilinium Chlorides
  10. Neue bifunktionelle Silazane und ihr Kondensationsverhalten: 3-Methyl-2,2,4,4-tetrakis(methylamino)-1-phenyl-[1,3,2,4]diazadisiletidin, 1,3-Dichloro-2-phenyl-1,1,3,3-tetrakis(dimethylamino)disilazan, 3-Methyl-2,2,4,4-tetrakis(dimethylamino)-1-phenyl-[1,3,2,4]diazadisiletidin und 2,2,4,4-Tetrakis(dimethylamino)-1-phenyl-[1,3,2,4]diazadisiletidin/New Bifunctional Silazanes and their Condensation Reactions: 3-Methyl-2,2,4,4-tetrakis(methylamino)-1-phenyl-[1,3,2,4]diazadisiletidine, 1,3-Dichloro-2-phenyl-1,1,3,3-tetrakis(dimethylamino)disilazane, 3-Methyl-2,2,4,4-tetrakis(dimethylamino)-1-phenyl-[1,3,2,4]diazadisiletidine and 2,2,4,4-Tetrakis(dimethylamino)-1-phenyl-[1,3,2,4]diazadisiletidine
  11. Spectroelectrochemical Investigation of Pentacarbonyl(pyrazine)metal(0) (Metal = Cr, Mo, W) Complexes of Group 6 Elements
  12. N,N′-Bis(silyl)ethylendiamine und 1,3-Diaza-2-silacyclopentane – Synthese, Reaktionen, Strukturen/ N,N′-Bis(silyl)ethylenediamines and 1.3-Diaza-2-silacyclopentanes – Synthesis, Reactions, Crystal Structures
  13. Synthesis and Separating Properties of Tris(Merrifield Peptide Resin)
  14. Polysulfonylamine, CL [1]. Wasserstoffbrücken in kristallinen Oniumdimesylamiden: Ein robustes Achtring-Synthon in den Strukturen von Methyluronium- und 1,1-Dimethyluronium-dimesylamid./Polysulfonylamines, CL [1]. Hydrogen Bonding in Crystalline Onium Dimesylamides: A Robust Eight-Membered Ring Synthon in the Structures of Methyluronium and 1,1-Dimethyluronium Dimesylamide
  15. A Xanthone Dixylopyranoside from Swertia thomsonii
  16. Synthesis and EPR Evaluation of the Nitrone PBN-[tert-13C] for Spin Trapping Competition
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