Studies on the constituents of Leonotis nepetaefolia

Tadahiro Takeda, Yuji Narukawa, Noriyasu Hada

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

Three antioxidative phenylethanoid glycosides and two new iridoid glycosides, along with three known iridoids were isolated from the African medicinal plant, Leonotis nepetaefolia R. BR. (Labiatae). The new iridoid glycosides were established as 10-O-(trans-3,4-dimethoxycinnamoyl)geniposidic acid and 10-O-(p-hydroxybenzoyl)geniposidic acid. Antioxidative activities of the compounds were measured by α,α-diphenyl-β-picrylhydrazyl (DPPH) method, and the three known phenylethanoid glycosides, acteoside, martynoside and lavandulifolioside showed strong antioxidative activity.

Original languageEnglish
Pages (from-to)284-286
Number of pages3
JournalChemical and Pharmaceutical Bulletin
Volume47
Issue number2
DOIs
Publication statusPublished - 1999 Feb

Keywords

  • Acylated geniposidic acid
  • Antioxidative activity
  • Labiatae
  • Leonotis nepetaefolia
  • Phenylethanoid glycoside

ASJC Scopus subject areas

  • Chemistry(all)
  • Drug Discovery

Fingerprint Dive into the research topics of 'Studies on the constituents of Leonotis nepetaefolia'. Together they form a unique fingerprint.

Cite this