Further flavonol and iridoid glycosides from Ajuga remota aerial parts

J Asian Nat Prod Res. 2007 Sep-Dec;9(6-8):617-29. doi: 10.1080/10286020600979480.

Abstract

Five new iridoid glycosides characterised as 6-keto-8-acetylharpagide (1), 6,7-dehydro-8-acetylharpagide (2), 7,8-dehydroharpagide (3), 8-acetylharpagide-6-O-beta-glucoside (4), harpagide-6-O-beta-glucoside (5) together with three flavonol glycosides, myricetin 3-O-rutinoside-4'-O-rutinoside (6), myricetin 3-O-rutinoside-3'-O-rutinoside (7) and isorhamnetin 3-O-rutinoside-7-O-rutinoside-4'-O-beta-glucoside (8) have been isolated from the aerial parts of Ajuga remota. Also isolated were two known compounds ajugarin IV and ajugarin V. Their structures were established using spectroscopic methods including UV, IR, FAB-MS, HR-MS, 1D and 2D NMR techniques.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Ajuga / chemistry*
  • Glycosides / chemistry
  • Glycosides / isolation & purification*
  • Magnetic Resonance Spectroscopy
  • Mass Spectrometry

Substances

  • Glycosides