Iridoids and phenylethanoids in Lagotis integrifolia and Wulfeniopsis amherstiana (Plantaginaceae)

Søren Rosendal Jensen, Charlotte Held Gotfredsen, Christian Zidorn

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Abstract

In a chemosystematic investigation of Wulfeniopsis amherstiana we have isolated four common iridoid glucosides as well as the esters 3''- and 4''-Cinnamoyl 6-O-rhamnopyranosylcatalpol. Furthermore the plant contained mannitol, arbutin, and four caffeoyl phenylethanoid glucosides, namely plantamajoside, aragoside and two new acetyl derivatives of the latter, named amherstianoside A and B. From Lagotis integrifolia we have obtained mannitol and three common iridoid glucosides together with the 8,9-unsaturated iridoids arborescosidic acid and anagalloside. The results show that the genus Wulfeniopsis is chemically different from Wulfenia and that it is closer related to Veronicastrum.
Original languageEnglish
JournalBiochemical Systematics and Ecology
Volume37
Issue number4
Pages (from-to)421-425
ISSN0305-1978
DOIs
Publication statusPublished - 2009

Keywords

  • Caffeoyl phenylethanoid glycosides
  • Amherstianosides
  • Iridoid glucosides
  • Mannitol
  • Arbutin
  • Wulfeniopsis
  • Chemosystematics
  • Plantaginaceae
  • Lagotis
  • 6-O-Rhamnopyranosylcatalpolesters

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