Concise total synthesis of calothrixins A and B

Takumi Abe, Toshiaki Ikeda, Reiko Yanada, Minoru Ishikura

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)

Abstract

The concise total synthesis of calothrixins A and B has been accomplished by utilizing the one-pot formation of hexatriene as a key intermediate via the palladium-catalyzed tandem cyclization/cross-coupling reaction of triethyl(indol-2-yl)borate. In another key transformation, the indolo[3,2-j]phenanthridine core was prepared in high yield via Cu(I)-mediated 6π-electrocyclization.

Original languageEnglish
Pages (from-to)3356-3359
Number of pages4
JournalOrganic Letters
Volume13
Issue number13
DOIs
Publication statusPublished - Jul 1 2011
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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