(DHOYA) and several variants, which are increasingly common fragments encountered in bioactive marine cyanobacterial metabolites, was developed. These fragments were obtained in three steps via a tertiary aldol reaction utilizing an Evans’ chiral auxiliary to afford the desired stereochemistry at the β-hydroxy carbon. Thus far, this methodology has been successfully applied in determination of the absolute
开发了 3-羟基-
2,2-二甲基辛酸 (DHOYA) 和几种变体的有效合成方法,这些变体是
生物活性海洋蓝藻代谢物中越来越常见的片段。这些片段是通过叔醛醇反应分三步获得的,该反应利用埃文斯手性助剂在 β-羟基碳上提供所需的立体
化学。迄今为止,该方法已成功应用于测定八种蓝藻
天然产物的绝对立体
化学,包括 VGSC 活化剂 palymramide A。