Total Syntheses of Epothilones B and D

Jae‐Chul Jung, Rajashaker Kache, Kimberly K. Vines, Yan‐Song Zheng, Panicker Bijoy, Muralikrishna Valluri, Mitchell A. Avery

The Journal of Organic Chemistry · 2004 · 45 citations · 31 references

Concepts

Abstract

A convergent, total synthesis of epothilones B (2) and D (4) is described. The key steps are Normant coupling to establish the desired (Z)-stereochemistry at C12-C13, Wadsworth-Emmons olefination of methyl ketone 28 with the phosphonate ester 8, diastereoselective aldol condensation of aldehyde 5 with the enolate of keto acid derivatives to form the C6-C7 bond, selective deprotection of acid 52, and macrolactonization.

References

31