Synthesis of Macrolide−Saccharide Hybrids by Ring-Closing Metathesis of Precursors Derived from Glycitols and Benzoic Acids
作者:Marie-Christine Matos、Paul V. Murphy
DOI:10.1021/jo062159l
日期:2007.3.1
natural polyketide derived macrolides, are described herein, providing a basis for their development as scaffolds. The syntheses were carried out from benzoic acids and appropriately protected d-mannitol or d-sorbitol (d-glucitol). Ring-closing metathesis was applied in the macrocyclization step with high E-alkene selectivities being observed. X-ray crystal structures, for two polyhydroxylated derivatives
苯甲内酯结构基序是一种特权的或进化选择的支架,其编码与蛋白质结合所需的性质,其新颖的类似物可提供新的生物活性化合物的来源。糖也是特权结构,其中(氨基)糖,亚氨基糖和糖氨基酸被用作发展非肽类拟肽的支架。本文描述了新颖的多羟基化的草酰马来酸内酯的合成,所述天然的多酮化合物衍生的大环内酯类的结构类似物,为它们作为支架的发展提供了基础。由苯甲酸和适当保护的d-甘露醇或d-山梨醇(d-葡萄糖醇)。闭环复分解中具有高的大环化步骤施加E-观察到烯烃的选择性。两个多羟基化衍生物的X射线晶体结构表明,大环显示出相似的构象。另外,在晶格中观察到分子间氢键网络。