Enantio- and diastereoselective total synthesis of (+)-panepophenanthrin, a ubiquitin-activating enzyme inhibitor, and biological properties of its new derivatives

Masayoshi Matsuzawa, Hideaki Kakeya, Junichiro Yamaguchi, Mitsuru Shoji, Rie Onose, Hiroyuki Osada, Yujiro Hayashi

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40 Citations (Scopus)


The asymmetric total synthesis of (+)-panepophenanthrin, an inhibitor of ubiquitin-activating enzyme (E1), has been accomplished using catalytic asymmetric α aminoxylation of 1,4-cyclohexanedione monoethylene ketal as a key step, followed by several diastereoselective reactions. The biomimetic Diels-Alder reaction of a monomer precursor was found to proceed efficiently in water. The investigation of the biological properties of new derivatives of (+)-panepophenanthrin enabled us to develop new cell-permeable E1 inhibitors, RKTS-80, -81, and -82.

Original languageEnglish
Pages (from-to)845-851
Number of pages7
JournalChemistry - An Asian Journal
Issue number6
Publication statusPublished - 2006 Dec 1



  • Asymmetric synthesis
  • Chemical biology
  • Natural products
  • Panepophenanthrin
  • Total synthesis

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry
  • Organic Chemistry

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