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Total Synthesis and Absolute Configuration of (-)-Anthoplalone
Stephen Hanessian1, Louis-David Cantin, Daniele Andreotti
1Department of Chemistry, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7 Canada.
The Journal of Organic Chemistry
|October 25, 2001
Summary
The total synthesis of cytotoxic agent (-)-anthoplalone was achieved, including determination of its absolute stereochemistry. Key steps involved constructing the cyclopropane and E-trisubstituted olefin moieties.
Area of Science:
- Organic Chemistry
- Synthetic Chemistry
- Medicinal Chemistry
Background:
- (-)-Anthoplalone is a cytotoxic agent with a complex structure.
- Understanding its synthesis is crucial for potential therapeutic applications.
Purpose of the Study:
- To achieve the total synthesis of (-)-anthoplalone.
- To determine the absolute stereochemistry of (-)-anthoplalone.
- To explore synthetic routes for key structural features.
Main Methods:
- Stereoselective synthesis of the cyclopropane moiety via bicyclic chloroallyl phosphonamide anion addition.
- Investigation of multiple pathways for constructing the E-trisubstituted olefin.
Main Results:
- Successful total synthesis of (-)-anthoplalone.
- Elucidation of the molecule's absolute stereochemistry.
- Identification of viable routes for key olefin formation.
Conclusions:
- The synthetic route provides access to (-)-anthoplalone.
- The determined stereochemistry is vital for biological activity assessment.
- This work contributes to the development of novel cytotoxic agents.