Irijimasides A-E, Macrolide Glycosides from an Okeania sp. Marine Cyanobacterium

Aki Yamano, Noriyuki Natsume, Miki Yamada, Shimpei Sumimoto, Arihiro Iwasaki, Kiyotake Suenaga, Toshiaki Teruya

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Irijimasides A-E (1-5), a series of new 14-membered macrolide glycosides, were isolated from a marine cyanobacterium collected in Okinawa. The gross structures of 1-5 were established by spectroscopic analysis, including 2D NMR, while absolute stereostructures were determined based on NOESY spectra, chemical derivatization, and ECD data. All five macrolides suppressed receptor activator of nuclear factor-κB ligand (RANKL)-induced tartrate-resistant acid phosphatase (TRAP) activity in mouse RAW264 macrophage cells, indicating that these compounds inhibit osteoclast formation.

Original languageEnglish
Pages (from-to)1585-1591
Number of pages7
JournalJournal of Natural Products
Issue number5
Publication statusPublished - 2020 May 22

ASJC Scopus subject areas

  • Analytical Chemistry
  • Molecular Medicine
  • Pharmacology
  • Pharmaceutical Science
  • Drug Discovery
  • Complementary and alternative medicine
  • Organic Chemistry


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