6-(Hetero)Arylpurine nucleotides as inhibitors of the oncogenic target DNPH1: Synthesis, structural studies and cytotoxic activities
作者:Claire Amiable、Julie Paoletti、Ahmed Haouz、André Padilla、Gilles Labesse、Pierre-Alexandre Kaminski、Sylvie Pochet
DOI:10.1016/j.ejmech.2014.07.110
日期:2014.10
Here, we describe the synthesis of a series of novel 6-aryl- and 6-heteroarylpurine riboside 5′-monophosphates via Suzuki–Miyaura cross-coupling reactions, and their ability to inhibit recombinant rat and human DNPH1. Enzymatic inhibition studies revealed competitive inhibitors in the low micromolar range. Crystal structures of human and rat DNPH1 in complex with one nucleotide from this series, the 6-naphthylpurine
2'-脱氧核苷5'-磷酸N-水解酶1(DNPH1)已被提议作为治疗癌症的新分子靶标。这里,我们描述的一系列新的6-芳基-和6- heteroarylpurine核苷的单磷酸5'-合成通过Suzuki-Miyaura交叉偶联反应及其抑制重组大鼠和人DNPH1的能力。酶抑制研究表明竞争性抑制剂在低微摩尔范围内。人和大鼠DNPH1的晶体结构与该系列中的一个核苷酸(6-萘基嘌呤衍生物)形成复合物,提供了详细的结构信息,特别是围绕大疏水性取代基的长而柔软的环包裹的可能构象。利用这些高分辨率结构,我们进行了虚拟对接研究,以评估整个化合物系列的酶-抑制剂相互作用。在合成的化合物中,几个分子在体外表现出显着的对人结肠癌(HCT15,HCT116)和人早幼粒细胞白血病(HL60)细胞系的细胞毒性具有低微摩尔范围的IC 50值,这与体外DNPH1抑制能力相关。