Iridoid glucosides in the endemic Picconia azorica (Oleaceae)

Chryssoula Gousiadou, Tetsuo Kokubun, José Martins, Charlotte Held Gotfredsen, Søren Rosendal Jensen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In our continued investigation of plants from the family Oleaceae we have now investigated Picconia azorica endemic to the Azores. Like most species within the family it contains the oleoside-based secoiridoid glucosides ligstroside and oleuropein as the main compounds and in addition verbascoside and echinacoside. As with the previously investigated Picconia excelsa, it also contained the carbocyclic iridoid glucosides involved in the biosynthetic pathway to the oleoside derivatives. However, while P. excelsa contained loganin esterified with some monoterpenoid acids, P. azorica contains similar esters of 7-epi-loganic acid named Picconioside A and B. In addition were found the two 7-O-E/Z-cinnamoyl esters of 7-epi-loganic acid named Picconioside C and D.
Original languageEnglish
JournalPhytochemistry
Volume115
Pages (from-to)171-174
Number of pages4
ISSN0031-9422
DOIs
Publication statusPublished - 2015

Keywords

  • Picconia azorica L
  • Oleaceae
  • Chemotaxonomy
  • Iridoid glucosides
  • Secoiridoid glucosides
  • Phenylethanoid glucosides

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