Design, synthesis and pharmacological evaluation of 4,5-diarylisoxazols bearing amino acid residues within the 3-amido motif as potent heat shock protein 90 (Hsp90) inhibitors
作者:Chi Zhang、Xin Wang、Hongchun Liu、Minmin Zhang、Meiyu Geng、Liping Sun、Aijun Shen、Ao Zhang
DOI:10.1016/j.ejmech.2016.09.043
日期:2017.1
A structure-based medicinal chemistry optimization was conducted on the clinical Hsp90 inhibitor diarylisoxazole 3. Several series of new compounds were designed and synthesized by incorporating diversified amino acid derivatives with various lengths to the 3-amido motif of the isoxazole scaffold. Compound 14j was identified to have high Hsp90 binding potency (14 nM) and antiproliferative activity
对临床Hsp90抑制剂diarylisoxazole 3进行了基于结构的药物化学优化。通过将具有各种长度的多种氨基酸衍生物掺入异恶唑支架的3-酰胺基序,设计并合成了一系列新化合物。已确定化合物14j具有高的Hsp90结合力(14 nM)和针对H3122人肺癌和BT-474乳腺癌细胞的抗增殖活性。用H3122细胞处理14j导致客体蛋白ALK降解,AKT和ERK的下游磷酸化减少以及Hsp70的上调。分子对接表明化合物14j中的末端缬氨酸部分和乙二醇接头 形成了具有许多氨基酸残基的额外的非极性和极性相互作用网络。