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The synthesis of alisamycin, nisamycin, LL-C10037 alpha and novel epoxyquinol and epoxyquinone analogues of manumycin A

R J K Taylor, L Alcaraz, I Kapfer-Eyer, G Macdonald, X D Wei, N Lewis

Research output: Contribution to journalArticlepeer-review

Abstract

Versatile synthetic routes are described for the preparation of a range of epoxyquinol and epoxyquinone analogues of the antitumour antibiotic manumycin A lacking the lower side chain, and these procedures have also been applied to prepare the bioactive natural product LL-C 10037 alpha. The extension of this methodology to provide a general synthetic route to the manumycin family of antibiotics is discussed and exemplified by the first total synthesis of alisamycin and ent-alisamycin. This route includes the novel, stereoselective organometallic addition of the Corey-Wollenberg reagent (E-2-tributylstannylethenyllithium) to the manumycin nucleus and palladium catalysed Stille coupling technology for the introduction of the polyunsaturated 2-amino-3-hydroxycyclopentenone derived amide. Similar methodology has also been employed to complete the first total synthesis of the antibiotic nisamycin.

Original languageEnglish
Pages (from-to)775-790
Number of pages16
JournalSYNTHESIS-STUTTGART
Issue number5
Publication statusPublished - May 1998

Keywords

  • LL-C10037 alpha
  • alisamycin
  • nisamycin
  • manumycin analogues
  • Stille coupling
  • STREPTOMYCES SP K106
  • ANTITUMOR ANTIBIOTIC LL-C10037-ALPHA
  • RAS FARNESYLTRANSFERASE INHIBITORS
  • HYPERVALENT IODINE OXIDATION
  • ABSOLUTE STEREOCHEMISTRY
  • STRUCTURE ELUCIDATION
  • BIOLOGICAL PROPERTIES
  • METABOLIC PRODUCTS
  • SODIUM PERBORATE
  • BIOSYNTHESIS

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