4.7 Article

Asymmetric total synthesis of ent-heliespirones A & C

Journal

CHEMICAL COMMUNICATIONS
Volume 46, Issue 29, Pages 5280-5282

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c0cc00481b

Keywords

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Funding

  1. NSFC [20702032, 20872098]
  2. MOE [IRT0846]
  3. MOST [2010CB833200]

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A concise 8-step synthetic route toward ent-heliespirones A & C is described. This synthetic strategy features a highly diastereoselective palladium-catalyzed Michael addition to form 3,5-trans lactone and a final biomimetic intramolecular oxa-spirocyclization.

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