99%) substituted with iodine in the phenyl ring was prepared from ( S )-1-(4-iodophenyl)ethanol ( ee >98%) obtained by lipase-catalysed resolution and methyl 1 H -imidazole- 5-carboxylate. The two fragments were joined highly regioselectively (alkylation only at N-1 of substituted imidazole) with inversion of configuration using the Mitsunobu reaction. Finally, p -iodometomidate was transformed into the
由( S )-1-(4-
碘苯基)
乙醇( ee > 98%)通过
脂肪酶催化拆分和1 H-
咪唑甲基5-
羧酸甲酯制得 在苯环中被
碘取代的甲酰胺基( ee 99%) 。使用 Mitsunobu 反应将两个片段高度区域选择性地连接(仅在取代的
咪唑的N-1处烷基化),并且构型反转 。最终, 将对
碘代
苯甲酸酯转化为 对
三甲基锡烷基衍
生物。