Stereoselective reduction of β,δ-diketo esters derived from tartaric acid. A facile route to optically active 6-oxo-3,5-syn-isopropylidenedioxyhexanoate, a versatile synthetic intermediate of artificial HMG Co-A reductase inhibitors.
作者:Tatsuya Minami、Kyoko Takahashi、Tamejiro Hiyama
DOI:10.1016/0040-4039(93)85115-d
日期:1993.1
Reduction of beta,delta-diketo esters derived from tartaric acid with HAl(i-Bu)2 gave stereoselectively beta-hydroxy-delta-keto esters which were reduced with NaBH4 and Et2BOMe to beta,delta-syn-dihydroxy esters. This strategy was successfully applied to the synthesis of t-butyl (3R,5S)-6-oxo-3,5-isopropylidenedioxyhexanoate starting from D-tartrate.