3-D QSAR Investigations of the Inhibition of <i>Leishmania </i><i>m</i><i>ajor</i> Farnesyl Pyrophosphate Synthase by Bisphosphonates
作者:John M. Sanders、Aurora Ortiz Gómez、Junhong Mao、Gary A. Meints、Erin M. Van Brussel、Agnieszka Burzynska、Pawel Kafarski、Dolores González-Pacanowska、Eric Oldfield
DOI:10.1021/jm0302344
日期:2003.11.1
set results (N = 62 compounds) yielded good correlations with each technique (R(2) = 0.87 and 0.88, respectively), and were further validated by using a training/test set approach. Test set results (N = 24 compounds) indicated that IC(50) values could be predicted within factors of 2.9 and 2.7 for the CoMFA and CoMSIA methods, respectively. The CoMSIA fields indicated that a positive charge in the bisphosphonate
我们报告了作为利什曼原虫主要甲羟戊酸/异戊二烯生物合成途径酶,法呢基焦磷酸合酶的抑制剂的62二膦酸盐的活性。所研究的化合物具有约100 nM至约80 microM(相当于K(i)值低至10 nM)的活性(IC(50)值)。发现活性最高的化合物是唑来膦酸盐(据报道其单晶X射线结构),吡啶基-乙烷-1-羟基-1,1-双膦酸酯或吡啶甲基氨基亚甲基双膦酸酯。但是,N-脂环族氨基亚甲基双膦酸酯(如茚满膦酸酯)(N-环庚基氨基亚甲基双膦酸酯)以及含有短(n = 4、5)烷基链的脂族氨基亚甲基双膦酸酯也具有活性,IC(50)值在200-1700 nM范围内(对应于大约20-170 nM的K(i)值)。含有更长或多个(N,N-)烷基取代基的双膦酸酯是无活性的,环上缺少邻或间氮原子或具有多个卤素取代基或对氨基的芳香族化合物也是如此。为了将这些观察结果放在更定量的结构基础上,我们使用了三维定量结构-活性关系技