Iridoid glycosides of Leonurus persicus

J Nat Prod. 1999 Jun;62(6):811-6. doi: 10.1021/np980376e.

Abstract

Two new iridoid glucosides, 6-O-acetylajugol (1) and 7, 8-epoxy-8-epi-loganic acid (2), together with five known iridoid glucosides, galiridoside (3), ajugoside (4), 10-deoxygeniposidic acid (5), 7-deoxy-8-epi-loganic acid (6), and 8-O-acetylharpagide (7), have been isolated from the aerial parts of Leonurus persicus. Leucosceptoside A (8), eugenyl beta-rutinoside (9), and kaempferol 3-O-glucoside (10) were also isolated. The structures of 1 and 2 were elucidated by extensive 1D- and 2D-NMR spectroscopy and molecular modeling. The structure of 3 was confirmed by single-crystal X-ray diffraction. Antimicrobial activity of compounds (1-10) was also evaluated against a panel of gram-positive and gram-negative bacteria and two strains of fungi.

MeSH terms

  • Anti-Bacterial Agents
  • Anti-Infective Agents / isolation & purification*
  • Anti-Infective Agents / pharmacology
  • Crystallography, X-Ray
  • Fungi / drug effects
  • Glycosides / isolation & purification*
  • Glycosides / pharmacology
  • Gram-Negative Bacteria / drug effects
  • Gram-Positive Bacteria / drug effects
  • Lamiaceae / chemistry*
  • Magnetic Resonance Spectroscopy
  • Microbial Sensitivity Tests
  • Molecular Conformation
  • Spectrophotometry, Ultraviolet
  • Stereoisomerism
  • Turkey

Substances

  • Anti-Bacterial Agents
  • Anti-Infective Agents
  • Glycosides