Solution-Phase Parallel Synthesis with Oligoethylene Glycol Sorting Tags. Preparation of All Four Stereoisomers of the Hydroxybutenolide Fragment of Murisolin and Related Acetogenins
作者:Venugopal Gudipati、Dennis P. Curran、Craig S. Wilcox
DOI:10.1021/jo060217x
日期:2006.4.1
The principles of the oligoethylene glycol (OEG) mixturesynthesis are illustrated with the synthesis of all four possible stereoisomers of a hydroxybutenolide fragment common to murisolin and many other acetogenins. Modified dimethoxybenzyl groups with varying numbers of OEG units (−CH2CH2O−) are used to protect alcohols and serve as codes for configurations at two stereocenters. The encoded isomers