Synthesis, computational studies and biological evaluation of new 1-acetyl-3-aryl thiourea derivatives as potent cholinesterase inhibitors
作者:Aamer Saeed、Muhammad Shakil Shah、Fayaz Ali Larik、Shafi Ullah Khan、Pervaiz Ali Channar、Ulrich Flörke、Jamshed Iqbal
DOI:10.1007/s00044-017-1829-6
日期:2017.8
1-acetyl-3-aryl thioureas (3f1–15) was synthesized by the reaction of acetyl isothiocyanate with a variety of suitably substituted aromatic anilines. The acetyl isothiocyanate was freshly prepared by reaction of corresonding acid chloride with potassium thiocyanate. The structural confirmation of all compounds was carried out by spectroscopic techniques and in case of 3a by X-ray diffraction study. The newly
通过使乙酰基异硫氰酸酯与各种适当取代的芳族苯胺反应,合成了一系列新的1-乙酰基-3-芳基硫脲(3f1 – 15)。通过使相应的酰氯与硫氰酸钾反应新鲜制备乙酰基异硫氰酸酯。所有化合物的结构确认均通过光谱技术进行,对于3a,则通过X射线衍射研究进行确认。对新制备的化合物进行了计算研究,并评估了其对胆碱酯酶(乙酰胆碱酯酶和丁酰胆碱酯酶)的抑制作用。除3f9和3f15外,所有衍生物均被发现是乙酰胆碱酯酶的选择性抑制剂。复合发现3f2(IC 50 ±SEM = 1.99±0.11 µM)是最有效的乙酰胆碱酯酶抑制剂,其抑制潜能是参考抑制剂新斯的明(IC 50 ±SEM = 22.2±3.2 µM)约11倍。已发现化合物3f9是最有效的丁酰胆碱酯酶抑制剂(IC 50 ±SEM = 1.33±0.11 µM),对丁酰胆碱酯酶的选择性是乙酰胆碱酯酶的约四倍。进行了分子对接研究以确定这些有效抑制剂与胆