申请人:Sagami Chemical Research Center
公开号:US05276154A1
公开(公告)日:1994-01-04
The present invention provides optically active esters of 7-substituted 3,5-difunctionalized 6-heptenoic acids represented by the following formula: ##STR1## wherein R is a substituted or unsubstituted aromatic group, a substituted or unsubstituted heteroaromatic group or a substituted vinyl group; Ar is a condensed aromatic group; X.sup.1 and Y.sup.1 are not the same and each is a hydrogen atom or a hydroxyl group, or may be combined to represent an oxygen atom which forms a carbonyl group together with the carbon atom to which X.sup.1 and Y.sup.1 are attached; and X.sup.2 and Y.sup.2 are not the same and each is a hydrogen atom or a hydroxyl group, or may be combined to represent an oxygen atom which forms a carbonyl group together with the carbon atom to which X.sup.2 and Y.sup.2 are attached, or enantiomers thereof. The present invention further provides processes for preparing the above optically active esters and 7-substituted (3R, 5S, 6E)-3,5-dihydroxy-6-hepten-1,5-olides. These esters are useful as synthetic intermediates for preparing the above lactones having an inhibitory activity of HMG-CoA reductase as well as a sex attractant pheromone of beetles, endo-1,3-dimethyl-2,9-dioxabicyclo[3.3.1]nonane.
本发明提供了以下式子所示的7-取代3,5-二官能团6-庚烯酸的光学活性酯:##STR1## 其中R是取代或未取代的芳基、取代或未取代的杂环芳基或取代的乙烯基;Ar是缩合芳基;X1和Y1不相同,每个都是氢原子或羟基,或者可以结合在一起表示氧原子,与X1和Y1连接的碳原子形成羰基;X2和Y2不相同,每个都是氢原子或羟基,或者可以结合在一起表示氧原子,与X2和Y2连接的碳原子形成羰基,或其对映体。本发明还提供了制备上述光学活性酯和7-取代(3R,5S,6E)-3,5-二羟基-6-庚烯-1,5-内酯的方法。这些酯可用作合成中间体,用于制备具有HMG-CoA还原酶抑制活性以及甲虫的性引诱素内-1,3-二甲基-2,9-二氧杂双环[3.3.1]壬烷的上述内酯。