Pantothenamides are known for their in vitro antimicrobial activity. Our group has previously reported a new stereoselective route to access derivatives modified at the geminal dimethyl moiety. This route however fails in the addition of large substituents. Here we report a new synthetic route that exploits the known allyl derivative, allowing for the installation of larger groups via cross-metathesis. The method was applied in the synthesis of a new pantothenamide with improved stability in human blood.
泛酰胺因其体外抗微生物活性而闻名。我们的团队先前报道了一种新的立体选择性路径,可用于访问在伽玛二甲基基团上进行修饰的衍生物。然而,该路径在添加大的取代基时失败。在这里,我们报告了一种利用已知的烯丙基衍生物的新合成途径,通过交叉烯烃转化实现较大基团的安装。该方法已应用于合成一种新的泛酰胺,在人类血液中具有改善的稳定性。