Total Synthesis of Isoprekinamycin: Structural Evidence for Enhanced Diazonium Ion Character and Growth Inhibitory Activity toward Cancer Cells
作者:Wei Liu、Matthew Buck、Nan Chen、Muhong Shang、Nicholas J. Taylor、Jalil Asoud、Xing Wu、Brian B. Hasinoff、Gary I. Dmitrienko
DOI:10.1021/ol0712374
日期:2007.7.1
The structurally novel diazobenzo[a]fluorene antibiotic isoprekinamycin (IPK) has been synthesized for the first time employing a Suzuki coupling of a brominated AB ring synthon with a boronate ester representing the D ring, followed by anionic cyclization and appropriate functional group manipulations. The first indication that the diazobenzo[a]fluorene system exhibits in vitro anticancer activity
使用溴化AB环合成子与代表D环的硼酸酯的Suzuki偶联,然后进行阴离子环化和适当的官能团处理,首次合成了结构新颖的重氮苯并[a]芴类抗生素异普瑞霉素(IPK)。提供了重氮苯并[a]芴体系表现出体外抗癌活性的第一个迹象,并描述了由于分子内氢键作用而增强重氮离子特性的X射线晶体学证据。