Thiocarbonyl Ylide Chemistry Enables a Concise Synthesis of (±)-Hippolachnin A

Nils Winter, Dirk Trauner

Research output: Contribution to journalArticlepeer-review


Hippolachnin A (1) is an antifungal polyketide that bristles with ethyl groups mounted onto a caged heterotricyclic core. It has shown potent activity against Cryptococcus neoformans, a yeast that can affect immunocompromised patients as an opportunistic pathogen. Herein we describe a concise, diversifiable, and scalable synthesis of (±)-hippolachnin A (1). It features a powerful photochemical opening step, a diastereoselective addition of an ethyl cuprate and an unusual strategy to install two additional ethyl groups that makes use of a thiocarbonyl ylide generated in situ.

Original languageEnglish (US)
Pages (from-to)11706-11709
Number of pages4
JournalJournal of the American Chemical Society
Issue number34
StatePublished - Aug 30 2017

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry


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