Identification and synthesis of substituted pyrrolo[2,3-d]pyrimidines as novel firefly luciferase inhibitors
作者:Yang Liu、Jianping Fang、Haiyan Cai、Fei Xiao、Kan Ding、Youhong Hu
DOI:10.1016/j.bmc.2012.07.035
日期:2012.9
A novel firefly luciferase inhibitor (3a) with a pyrrolo[2,3-d]pyrimidine core was identified in a cell-based NF-κB luciferase reporter gene assay. It potently inhibited the firefly luciferase derived from Photinus pyralis with an IC50 value of 0.36 ± 0.05 μM. Kinetic analysis of 3a inhibition showed that it is predominantly competitive with respect to d-luciferin and uncompetitive with respect to
在基于细胞的NF-κB萤光素酶报告基因分析中鉴定出一种新型的具有吡咯并[2,3- d ]嘧啶核的萤火虫萤光素酶抑制剂(3a)。它有效地抑制了源自Photinus pyralis的萤火虫荧光素酶,其IC 50值为0.36±0.05μM。对3a抑制的动力学分析表明,它相对于d-荧光素主要竞争,而相对于ATP不竞争。因此,制备了几种吡咯并[2,3- d ]嘧啶类似物以进一步研究荧光素酶抑制的构效关系(SAR)。该系列中最有效的抑制剂是4c,显示出IC50值为0.06±0.01μM。此外,分子对接研究表明3a和4c都可以容纳在d-荧光素结合袋中,这对于d-荧光素主要是竞争性抑制剂。