Extensive Ring-Expansion Strategy for the Enantioselective Synthesis of the Medium Ring Ethers, Oxepene, Oxocane, and Oxonene, of Ciguatoxin

Tohru Oishi, Mitsuru Shoji, Kenji Maeda, Naomi Kumahara, Masahiro Hirama

Research output: Contribution to journalArticle

42 Citations (Scopus)


The extensive ring-expansion strategy for the synthesis of oxepene 19, oxocane 23, and oxonene 28, which correspond to the D (E), I and F ring fragments of ciguatoxin (1), respectively, has been established. Chemoenzymatic asymmetric acylation of the meso alcohols using lipase AK provided a simple entry of the enantiomeric building blocks.

Original languageEnglish
Pages (from-to)1165-1167
Number of pages3
Issue number12
Publication statusPublished - 1996 Jan 1


ASJC Scopus subject areas

  • Organic Chemistry

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