An Efficient Derivation of the Versatile Chiron Antipode 1-<i>tert</i>-Butyldimethylsilylpenta-1,4-diyn-3-ol: Application to the Synthesis of (15<i>E</i>,<i>R</i>,<i>R</i>)-Duryne
作者:A. Sharma、S. Chattopadhyay
DOI:10.1021/jo9800513
日期:1998.9.1
nta-1,4-diyn-3-ol (5), an essential segment of various bioactive polyacetylenic alcohols, has been efficiently resolved via a lipase-catalyzed acylation strategy. Lipases from different Pseudomonas species and Candida rugosa (CRL) furnished its (S)-antipode (as esters) with 86-96% ee. However, the (R)-alcohol 5 could be prepared with acceptable enantiomeric purity (93% ee) only using CRL-vinyl acetate-diisopropyl