Monoterpene indole alkaloids from the stem bark of Mitragyna diversifolia and their acetylcholine esterase inhibitory effects

Phytochemistry. 2013 Dec:96:389-96. doi: 10.1016/j.phytochem.2013.10.002. Epub 2013 Oct 26.

Abstract

Five monoterpene indole alkaloids, mitradiversifoline, with a unique rearranged skeleton, specionoxeine-N(4)-oxide, 7-hydroxyisopaynantheine, 3-dehydropaynantheine, and 3-isopaynantheine-N(4)-oxide, and 10 known ones, were isolated from Mitragyna diversifolia. All the isolates were evaluated for their inhibition of acetylcholinesterase activities, and four showed moderate activities, with IC50 values of 4.1, 5.2, 10.2, and 10.3 μM, respectively.

Keywords: Acetylcholinesterase inhibition; Indole alkaloids; MALGMJVUNHCIIJ-KPWJTKAOSA-N; Mitragyna diversifolia; NNCQFOGYRMXDQB-NQHWVDMSSA-N; OJKYJWDFFASHGX-YOOCQZJISA-N; Rubiaceae; VJJLRVDUFIKWCM-LEKKXJIISA-O; WJALLKXSRQIWHF-ATOZLQQRSA-N.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetylcholinesterase / drug effects*
  • Cholinesterase Inhibitors / chemistry
  • Cholinesterase Inhibitors / isolation & purification*
  • Cholinesterase Inhibitors / pharmacology*
  • Drugs, Chinese Herbal / chemistry
  • Drugs, Chinese Herbal / isolation & purification*
  • Drugs, Chinese Herbal / pharmacology*
  • Inhibitory Concentration 50
  • Mitragyna / chemistry*
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular
  • Plant Bark / chemistry
  • Secologanin Tryptamine Alkaloids / chemistry
  • Secologanin Tryptamine Alkaloids / isolation & purification*
  • Secologanin Tryptamine Alkaloids / pharmacology*

Substances

  • Cholinesterase Inhibitors
  • Drugs, Chinese Herbal
  • Secologanin Tryptamine Alkaloids
  • Acetylcholinesterase