Synthesis of the C29−C44 Portion of Spongistatin 1 (Altohyrtin A)
作者:Grier A. Wallace、Robert W. Scott、Clayton H. Heathcock
DOI:10.1021/jo0002801
日期:2000.6.1
portion of spongistatin1 (altohyrtin A) have been developed. The key step of the first approach relies on the Claisen rearrangement of glucal 18 to provide ester 20a. This intermediate was advanced to silyl enol ether 30, which was coupled under Mukaiyama aldol conditions with aldehyde 3. Cyclization of this aldol adduct completed our first synthesis of the C29-C44 portion of spongistatin1, requiring