Total Synthesis of FR901464, an Antitumor Agent that Regulates the Transcription of Oncogenes and Tumor Suppressor Genes
作者:Brian J. Albert、Ananthapadmanabhan Sivaramakrishnan、Tadaatsu Naka、Kazunori Koide
DOI:10.1021/ja058216u
日期:2006.3.1
FR901464 is a potent anticancer agent that regulates the transcription of oncogenes and tumor suppressor genes. A convergent enantioselective synthesis of FR901464 was accomplished in 13 linear steps. Central to the synthetic approach was the diene-ene cross olefin metathesis reaction to generate the C6-C7 olefin, without the use of protecting groups, as the final coupling. Additional key reactions
FR901464 是一种有效的抗癌剂,可调节癌基因和肿瘤抑制基因的转录。FR901464 的收敛对映选择性合成以 13 个线性步骤完成。合成方法的核心是二烯-烯交叉烯烃复分解反应生成 C6-C7 烯烃,不使用保护基团作为最终偶联。其他关键反应包括 Zr/Ag 促进的炔化以设置 C4 立体中心、温和且化学选择性的 Red-Al 还原、立体选择性 Mislow-Evans 型 [2,3]-sigmatropic 重排以安装 C5 立体中心、Carreira 不对称炔基化以生成 C4' 立体中心,以及高效的闭环复分解-烯丙基氧化序列以形成不饱和内酯。