Imidazopyridine- and Purine-Thioacetamide Derivatives: Potent Inhibitors of Nucleotide Pyrophosphatase/Phosphodiesterase 1 (NPP1)
作者:Lei Chang、Sang-Yong Lee、Piotr Leonczak、Jef Rozenski、Steven De Jonghe、Theodor Hanck、Christa E. Müller、Piet Herdewijn
DOI:10.1021/jm501434y
日期:2014.12.11
Nucleotide pyrophosphatase/phosphodiesterase 1 (NPP1) belongs to the family of ecto-nucleotidases, which control extracellular nucleotide, nucleoside, and (di)phosphate levels. To study the (patho)physiological roles of NPP1 potent and selective inhibitors with drug-like properties are required. Therefore, a compound library was screened for NPP1 inhibitors using a colorimetric assay with p-nitrophenyl
核苷酸焦磷酸酶/磷酸二酯酶1(NPP1)属于胞外核苷酸酶家族,可控制细胞外核苷酸,核苷和(di)磷酸盐的水平。为了研究具有药物样特性的NPP1强效和选择性抑制剂的(病理)生理作用。因此,使用比色测定法以对硝基苯基5'-胸苷单磷酸酯(p -Nph-5'-TMP)作为人工底物,筛选化合物库中的NPP1抑制剂。这导致发现2-(3 H-咪唑并[4,5 - b ]吡啶-2-基硫基)-N-(3,4-二甲氧基苯基)乙酰胺(5a)为具有K i的命中化合物。值为217 nM。随后的结构-活性关系研究导致了嘌呤和咪唑并[4,5- b ]吡啶类似物的开发,用p -Nph-5'-进行测定具有高抑制力(K i值分别为5.00 nM和29.6 nM)。以TMP为底物。出乎意料的是,与ATP作为底物相比,测试时这些化合物的效力明显较低,K i值在低微摩尔范围内。对原型抑制剂的抑制机理进行了研究,发现该抑制剂与两种底物都具有竞争性。
Synthesis of Analogs of Hoechst 33258 Designed for Altered Base and Sequence Recognition
作者:Ashok K. Sing、J. W. Lown
DOI:10.1080/00397910008087106
日期:2000.3
Abstract The syntheses of various analogs of the minor groove binding agent Hoechst33258 I are described to explore their potential of selective helicase blockade and anticancer activity. The target compounds II a,b,c and III a,b,c were obtained by condensation of the appropriate functionalized ortho-diamines and substituted benzimidazole carboxaldehydes in nitrobenzene.
摘要 描述了小沟结合剂 Hoechst 33258 I 的各种类似物的合成,以探索其选择性解旋酶阻断和抗癌活性的潜力。目标化合物II a、b、c和III a、b、c通过适当的官能化邻二胺和取代的苯并咪唑甲醛在硝基苯中的缩合获得。
Method for reducing a susceptibility to tumor formation induced by 3-deoxyglucosone and precursors thereof
申请人:Brown R. Truman
公开号:US20060089316A1
公开(公告)日:2006-04-27
Disclosed are methods of using various compounds, which are known to bind to 3-deoxyglucosone (3DG) or precursors thereof, in order to reduce a susceptibility to tumor formation and/or to prevent or delay onset of tumor formation induced by 3DG and its precursors. Also disclosed is the reduction of 3DG levels in high fructose corn syrop so that the high fructose corn syrup is less likely to induce tumor formation.