unified, stereospecific synthetic route to the three geometric isomers of (E,E)-farnesyl diphosphate (E,E-FPP) (1, 2, and 3) has been developed. The key feature of this synthesis is the ability to control the stereochemistry of triflation of the beta-ketoester 10 to give either 11 or 14. Preliminary evaluation of these compounds with protein-farnesyl transferase indicates that 1 and 2 are surprisingly
[公式:见正文]已开发出统一的立体定向合成路线,可合成(E,E)-法呢基
二磷酸酯(E,E-FPP)(1、2和3)的三个几何异构体。该合成的关键特征是能够控制β-
酮酸酯10的三
氟甲基化的立体
化学,从而得到11或14。用蛋白-法呢基转移酶对这些化合物进行的初步评估表明,1和2是令人惊讶的有效底物;而2和3是有效的底物。但是,Z,Z-FPP(3)是较差的底物和亚微摩尔
抑制剂。