Concise Formal Synthesis of the Bryostatin Southern Hemisphere (C17−C27)
作者:Eric A. Voight、Paul A. Roethle、Steven D. Burke
DOI:10.1021/jo0495081
日期:2004.6.1
An efficient synthesis of Hale and co-workers' C17−C27 bryostatin southern hemisphere intermediate has been accomplished in six steps and 33% overall yield from (R)-2-(benzyloxy)propanal. The synthesis features a one-pot DIBALH/HWE ester homologation as well as a novel acetonide rearrangement/glycal formation cascade.