The Formal Total Synthesis of Epothilone A
β Scribed by Markus Kalesse; Monika Quitschalle; Eckhard Claus; Kai Gerlach; Axel Pahl; Hartmut H. Meyer
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 347 KB
- Volume
- 1999
- Category
- Article
- ISSN
- 1434-193X
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β¦ Synopsis
The formal total synthesis of epothilone A is described. The 3 is formed by introduction of the thiazole moiety by a Wittig reaction and subsequent functional group transformation. An key steps in the synthesis of the northern hemisphere are a Z-selective ten-membered ring-closing metathesis reaction efficient route to keto acid 5 is described. (RCM) and the diastereoselective alkylation at C8. Aldehyde
π SIMILAR VOLUMES
3117. !L = 10.11 cm-I. crystal dimensions 0.3 x 0 3x0.4mm. Mo,, radiation (0.71073 A). measurement at 150(2) K. Final R (on F) and wR2 (on F2) were 0 030 and 0 090. respectively, for all 11 760 unique data. Final G O F = 0.95. and the final difference fourier map showed no peak at greater than + 0.8