作者:Uzma Salar、Bakhtawer Qureshi、Khalid Mohammed Khan、Muhammad Arif Lodhi、Zaheer Ul‑Haq、Farman Ali Khan、Fouzia Naz、Muhammad Taha、Shahnaz Perveen、Shafqat Hussain
DOI:10.1007/s13738-021-02377-8
日期:2022.4
Aryl hydrazones bearing thiazolyl coumarin hybrids 1–32 were prepared by following 'one-pot' two-steps reaction scheme. Various arylaldehydes were reacted to thiosemicarbazide under acidic condition to form aryl thiosemicarbazone intermediates which in turn treated with 3-bromoacetyl coumarin under basic condition to afford thiazolyl coumarin hybrids 1–32. All hybrids were recognized by EI- and HREI-MS
通过遵循“一锅”两步反应方案制备带有噻唑基香豆素杂化物1-32的芳基腙。各种芳醛在酸性条件下与氨基硫脲反应形成芳基氨基氨基硫脲中间体,该中间体又在碱性条件下用 3-溴乙酰香豆素处理,得到噻唑基香豆素杂化物 1-32。所有杂种均通过 EI-和 HREI-MS 以及 1H-和 13C-NMR 光谱技术进行识别。筛选化合物 1-32 对脲酶的体外抑制活性,并在 IC50 = 16.29 ± 1.1-256.30 ± 1.4 µM 范围内显示出良好至中等的抑制潜力。值得指出的是,化合物 21 (IC50 = 16.29 ± 1.1 µM) 被确定为比标准乙酰氧肟酸 (IC50 = 27.0 ± 0.5 µM) 更有效的脲酶抑制剂。衍生物 19 (IC50 = 77.67 ± 1. 5 µM) 和 30 (IC50 = 71.21 ± 1.6 µM) 被发现具有中度活性。构效关系表明-F、-Cl、-