Enantioselective total synthesis of (+)-colletoic acid via catalytic asymmetric intramolecular cyclopropanation of an α-diazo-β-keto diphenylphosphine oxide

Takashi Sawada, Masahisa Nakada

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

The enantioselective total synthesis of (+)-colletoic acid, a potent naturally occurring 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) inhibitor, is described. This total synthesis features a highly enantioselective catalytic asymmetric intramolecular cyclopropanation of an α-diazo-β-keto diphenylphosphine oxide and five highly stereoselective reactions (cyclopropane opening, Diels-Alder reaction, iodolactonization, alkene formation, and reduction of α,β-unsaturated carboxylic acid).

Original languageEnglish
Pages (from-to)1004-1007
Number of pages4
JournalOrganic Letters
Volume15
Issue number5
DOIs
Publication statusPublished - 2013 Jan 1

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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