4.4 Article

Formal and total synthesis of (±)-cycloclavine

Journal

TETRAHEDRON LETTERS
Volume 55, Issue 1, Pages 197-199

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2013.10.152

Keywords

Cycloclavine; Ergot alkaloid; Natural product synthesis; Ring fragmentation; 1,3-Dipolar cycloaddition

Funding

  1. NIH [R01GM092870]
  2. Vermont Genetics Network from the INBRE Program of the National Institute of General Medical Sciences (NIGMS) [8P20GM103449]
  3. National Institutes of Health (NIH)
  4. National Science Foundation [CHE-1126265, CHE-0821501]
  5. Direct For Mathematical & Physical Scien
  6. Division Of Chemistry [1126265] Funding Source: National Science Foundation

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A ring fragmentation and intramolecular azomethine ylide 1,3-dipolar cycloaddition sequence of reactions was successfully used in the preparation of a known (+/-)-cycloclavine precursor in good overall yield. Results of efforts to incorporate the tetrasubstituted cyclopropane ring present in cycloclavine are also discussed. (C) 2013 Elsevier Ltd. All rights reserved.

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