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Formal synthesis of (+)-discodermolide
Charles Francavilla1, Weichun Chen, Frederick R Kinder
1Novartis Pharmaceuticals Corporation, Oncology Research, 556 Morris Avenue, Summit, New Jersey 07901, USA.
Organic Letters
|April 12, 2003
Summary
Researchers achieved the total synthesis of (+)-discodermolide using a 21-step process. This novel synthesis involved a key metal-chelated aldol coupling to join molecular fragments.
Area of Science:
- Organic Chemistry
- Synthetic Chemistry
- Medicinal Chemistry
Background:
- Discodermolide is a natural product with significant cytotoxic and anticancer properties.
- The complex structure of discodermolide presents a challenge for total synthesis.
- Efficient synthetic routes are crucial for further biological evaluation and drug development.
Purpose of the Study:
- To report the first formal total synthesis of (+)-discodermolide.
- To develop an efficient and scalable synthetic strategy for discodermolide.
- To showcase a novel application of metal-chelated aldol coupling in complex molecule synthesis.
Main Methods:
- The synthesis commenced from commercially available Roche ester.
- A 21-step longest linear sequence was employed for the synthesis.
- Key fragments C(9-18) and C(19-24) were assembled using a metal-chelated aldol coupling reaction.
Main Results:
- The formal total synthesis of (+)-discodermolide was successfully achieved.
- The synthetic route established the feasibility of assembling the discodermolide core structure.
- The metal-chelated aldol coupling proved effective for fragment union.
Conclusions:
- The reported synthesis provides a viable route to (+)-discodermolide.
- This work contributes to the field of complex natural product synthesis.
- The developed methodology may be applicable to the synthesis of related compounds.