Total Synthesis and Full Histone Deacetylase Inhibitory Profiling of Azumamides A–E as Well as β<sup>2</sup>- <i>epi</i>-Azumamide E and β<sup>3</sup>-<i>epi</i>-Azumamide E
作者:Jesper S. Villadsen、Helle M. Stephansen、Alex R. Maolanon、Pernille Harris、Christian A. Olsen
DOI:10.1021/jm4008449
日期:2013.8.22
tetrapeptide HDAC inhibitors, the azumamides, by a concise route in which the key step in preparation of the noncanonical disubstituted β-amino acid building block was an Ellman-type Mannich reaction. By tweaking the reaction conditions during this transformation, we gained access to the natural products as well as two epimeric homologues. Thus, the first total syntheses of azumamides B–D corroborated the originally
环状四肽和十肽天然产物由于其作为组蛋白脱乙酰基酶(HDAC)抑制剂的有效活性,已被证明可用作生物探针和候选药物。在这里,我们通过一种简明的方法介绍了一类环状四肽HDAC抑制剂,azumamides的合成,其中制备非规范的双取代β-氨基酸构件的关键步骤是Ellman型曼尼希反应。通过调整转化过程中的反应条件,我们获得了天然产物以及两个差向异构体的同源物。因此,氮酰胺类化合物B–D的第一个总合成证实了最初分配的结构,并且合成工作使得对氮酰胺类化合物A–E的整个选择的HDAC抑制特性进行了首次完整的分析。