Short-step and scalable synthesis of (±)-cytoxazone

Masayoshi Asano, Chiaki Nagasawa, Masumi Suzuki, Shigeru Nishiyama, Takeshi Sugai

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


A five-step and scalable synthesis of racemic cytoxazone, a novel cytokine modulator, was accomplished in a total yield of 51% from p-methoxycinnamyl alcohol without any protective groups. The keystep was the new one-pot azidohydroxylation procedure by the combined use of NaN3-H 2O2-CH3CN. The epoxidation of an olefin by means of an in situ-formed iminohydroperoxide worked well, accompanied by the concomitant regioselective ring opening reaction of the resulting highly reactive epoxide with an azide ion.

Original languageEnglish
Pages (from-to)145-148
Number of pages4
JournalBioscience, Biotechnology and Biochemistry
Issue number1
Publication statusPublished - 2005 Jan


  • Azidohydroxylation
  • Cytoxazone
  • Deaminocyclization
  • Nitrosation
  • Oxazolidinone

ASJC Scopus subject areas

  • Biotechnology
  • Analytical Chemistry
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Organic Chemistry


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