Structure-based design, synthesis and biological evaluation of β-glucuronidase inhibitors
作者:Khalid M. Khan、Nida Ambreen、Muhammad Taha、Sobia A. Halim、Zaheer-ul-Haq、Shagufta Naureen、Saima Rasheed、Shahnaz Perveen、Sajjad Ali、Mohammad Iqbal Choudhary
DOI:10.1007/s10822-014-9745-z
日期:2014.5
Using structure-based virtual screening approach, a coumarin derivative (1) was identified as β-glucuronidase inhibitor. A focused library of coumarin derivatives was synthesized by eco-benign version of chemical reaction, and all synthetic compounds were characterized by using spectroscopy. These compounds were found to be inhibitor of β-glucuronidase with IC50 values in a micromolar range. All synthetic compounds exhibited interesting inhibitory activity against β-glucuronidase, however, their potency varied substantially from IC50 = 9.9–352.6 µM. Of twenty-one compounds, four exhibited a better inhibitory profile than the initial hit 1. Interestingly, compounds 1e, 1k, 1n and 1p exhibited more potency than the standard inhibitor with IC50 values 34.2, 21.4, 11.7, and 9.9 µM, respectively. We further studied their dose responses and also checked our results by using detergent Triton ×-100. We found that our results are true and not affected by detergent.
利用基于结构的虚拟筛选方法,发现了一种香豆素衍生物(1)作为β-葡萄糖苷酸酶抑制剂。通过环保型化学反应合成了一个香豆素衍生物的重点库,并通过光谱技术对所有合成化合物进行了表征。这些化合物被发现是β-葡萄糖苷酸酶的抑制剂,其IC50值在微摩尔范围内。所有合成化合物对β-葡萄糖苷酸酶表现出有趣的抑制活性,但其效力差异显著,IC50值从9.9至352.6微摩尔不等。在二十一种化合物中,有四种表现出比初始命中物1更好的抑制性能。有趣的是,化合物1e、1k、1n和1p的效力超过了标准抑制剂,其IC50值分别为34.2、21.4、11.7和9.9微摩尔。我们进一步研究了它们的剂量反应,并通过使用洗涤剂Triton ×-100验证了我们的结果。我们发现我们的结果是真实的,并且不受洗涤剂的影响。