The Synthesis of Conformationally Restricted Analogs of Acetolactate
作者:William A. Kleschick、Liying S. Lu、Scott Thornburgh
DOI:10.1055/s-1997-1419
日期:1997.7
The synthesis of a conformationally restricted analog of acetolactate 1, a natural substrate for ketol acid reductoisomerase, is described. The key features of the successful synthesis are epoxidation of unsaturated ester 10 using urea-hydrogen peroxide complex and subsequent rearrangement of epoxide 11 to allylic alcohol 13 with aluminum tri-tert-butoxide. Compound 1 was neither a substrate for ketol acid reductoisomerase nor an inhibitor of the enzyme at concentrations up to 50 ppm.