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Total synthesis of vinigrol
Thomas J Maimone1, Jun Shi, Shinji Ashida
1Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
Journal of the American Chemical Society
|November 3, 2009
Summary
For the first time, scientists have synthesized the complex diterpene vinigrol. This breakthrough overcomes significant synthetic challenges, including its intricate ring system and numerous stereocenters, paving the way for further research.
Area of Science:
- Organic Chemistry
- Natural Product Synthesis
Background:
- Vinigrol is a complex diterpene presenting a significant synthetic challenge.
- Its structure features an unprecedented decahydro-1,5-butanonaphthalene core, eight contiguous stereocenters, and congested functionality.
Purpose of the Study:
- To achieve the first total synthesis of vinigrol.
- To develop a scalable and efficient synthetic route overcoming key structural hurdles.
Main Methods:
- A 23-step stereocontrolled synthetic route was designed and executed.
- The synthesis minimized the use of protecting group chemistry.
- Unique and chemoselective transformations were employed.
Main Results:
- The first total synthesis of vinigrol was successfully accomplished.
- A late-stage intermediate was prepared on a scalable (>5 g) level.
- The route demonstrated efficiency and control over stereochemistry.
Conclusions:
- The first total synthesis of vinigrol has been reported.
- The developed synthetic strategy is scalable and efficient.
- This work provides a foundation for accessing vinigrol and its analogs.
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