Stereoselective divergent synthesis of four diastereomers of pachastrissamine (Jaspine B)

Yuji Yoshimitsu, Shinsuke Inuki, Shinya Oishi, Nobutaka Fujii, Hiroaki Ohno

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Figure presented A divergent short synthesis of four diastereomers of pachastrissamine was achieved. Natural pachastrissamine was synthesized through bis-tosylation of the common intermediate and cyclization. 2-epi- Pachastrissamine was obtained by monotosylation and spontaneous cyclization of d-ribo-phytosphingosine derivative. By use of regio- and stereospecific ring-opening reaction of the orthoester assisted by a Boc group as a key step, 3-epi- and 2,3-epi-pachastrissamines were synthesized. The three stereogenic centers of all the diastereomers were constructed by using Garners aldehyde as the sole chiral source.

Original languageEnglish
Pages (from-to)3843-3846
Number of pages4
JournalJournal of Organic Chemistry
Issue number11
Publication statusPublished - 2010 Jun 4


ASJC Scopus subject areas

  • Organic Chemistry

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