Isoquinolone and protoberberine alkaloids from Stephania rotunda

Pharmazie. 2005 Sep;60(9):701-4.

Abstract

Chemical investigation of Stephania rotunda Lour. growing in Viet Nam led to the isolation and structural elucidation of three new alkaloids, 5-hydroxy-6,7-dimethoxy-3,4-dihydroisoquinolin-1(2H)-one (1), thaicanine 4-O-beta-D-glucoside (6), as well as (-)-thaicanine N-oxide (4-hydroxycorynoxidine) (8), along with 23 known alkaloids. These structures were determined on the basis of MS and NMR spectroscopic data.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkaloids / chemistry*
  • Alkaloids / isolation & purification
  • Berberine Alkaloids / chemistry*
  • Berberine Alkaloids / isolation & purification
  • Heterocyclic Compounds, 4 or More Rings / chemistry*
  • Heterocyclic Compounds, 4 or More Rings / isolation & purification
  • Isoquinolines / chemistry*
  • Isoquinolines / isolation & purification
  • Magnetic Resonance Spectroscopy
  • Mass Spectrometry
  • Monosaccharides / chemistry*
  • Monosaccharides / isolation & purification
  • Spectrometry, Mass, Electrospray Ionization
  • Stephania / chemistry*
  • Vietnam

Substances

  • 5-hydroxy-6,7-dimethoxy-3,4-dihydroisoquinolin-1(2H)-one
  • Alkaloids
  • Berberine Alkaloids
  • Heterocyclic Compounds, 4 or More Rings
  • Isoquinolines
  • Monosaccharides
  • thaicanine 4-O-beta-D-glucoside
  • thaicanine N-oxide (4-hydroxycorynoxidine)
  • protoberberine