Methodology Based on Chiral Silanes in the Synthesis of Polypropionate‐Derived Natural Products − Total Synthesis of Epothilone A
作者:Bin Zhu、James S. Panek
DOI:10.1002/1099-0690(200105)2001:9<1701::aid-ejoc1701>3.0.co;2-#
日期:2001.5
Epothilones A and B (1 and 2) are natural products with potent antitumor activity. These compounds have a TaxolTM-like mechanism of action against tumor cells. A total synthesis of epothilone A (1) is reported, which is based on the synthesis and union of two advanced fragments: C3-C11 fragment 4 and C12-C21 fragment 5. Bond construction methodology based on chiral silanes was utilized to introduce
埃博霉素A和B(1和2)是具有有效抗肿瘤活性的天然产物。这些化合物具有针对肿瘤细胞的类似Taxol TM的作用机理。据报道,埃博霉素A(1)的总合成是基于两个高级片段的合成和结合:C3-C11片段4和C12-C21片段5。基于手性硅烷的键构建方法被用于引入片段4的关键C6和C7立体中心。脂肪酶介导的动力学拆分成立片段的C15立体5。使用三步序列构建16元内酯:分子间B-烷基的4和5的铃木偶联,醛醇缩合和山口型大内酯化反应。