Irisones A and B: Two new isoflavones from iris missouriensis

Sui Ming Wong, Chohachi Konno, Yoshiteru Oshima, John M. Pezzuto, Harry H.S. Fong, Norman R. Farnsworth

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Two new isoflavones, irisones A [1] and B [2], together with the known compound, 5,7-dihydroxy-2',6-dimethoxy isoflavone, were isolated from the roots of Iris missouriensis. With the help of 2D-homonuclear-J-correlation and 2D-nOe experiments the structure of irisone A was deduced to be 5-hydroxy-2'-methoxy-6,7-methylenedioxy isoflavone. The structure of irisone B was elucidated by spectral analyses as 2', 5-dihydroxy-6,7-methylenedioxy isoflavone and was confirmed by chemical conversion to irisone A.

Original languageEnglish
Pages (from-to)178-180
Number of pages3
JournalJournal of Natural Products
Issue number2
Publication statusPublished - 1987 Mar 1
Externally publishedYes

ASJC Scopus subject areas

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


Dive into the research topics of 'Irisones A and B: Two new isoflavones from iris missouriensis'. Together they form a unique fingerprint.

Cite this