Design, Synthesis, and Cholinesterase Inhibition Assay of Coumarin‐3‐carboxamide‐
<i>N</i>
‐morpholine Hybrids as New Anti‐Alzheimer Agents
作者:Maliheh Barazandeh Tehrani、Zahra Rezaei、Mehdi Asadi、Hossein Behnammanesh、Hamid Nadri、Fatemeh Afsharirad、Alireza Moradi、Bagher Larijani、Maryam Mohammadi‐Khanaposhtani、Mohammad Mahdavi
DOI:10.1002/cbdv.201900144
日期:2019.7
Among them, propylmorpholine derivative 5g (N-[3-(morpholin-4-yl)propyl]-2-oxo-2H-chromene-3-carboxamide) bearing an unsubstituted coumarin moiety and ethylmorpholine derivative 5d (6-bromo-N-[2-(morpholin-4-yl)ethyl]-2-oxo-2H-chromene-3-carboxamide) bearing a 6-bromocoumarin moiety showed the most activity against AChE and BuChE, respectively. The inhibitory activity of compound 5g against AChE was
设计并合成了一系列新的香豆素-3-羧酰胺-N-吗啉杂化物5a-5l作为胆碱酯酶抑制剂。标题化合物的合成方法始于2-羟基苯甲醛衍生物与Meldrum's酸的反应,得到相应的香豆素3-羧酸。然后,将后面的化合物与2-吗啉代乙胺或N-(3-氨基丙基)吗啉酰胺化导致形成化合物5a-5l。对乙酰胆碱酯酶(AChE)和丁酰胆碱酯酶(BuChE)的体外抑制筛选显示,大多数合成的化合物具有有效的AChE抑制作用,而它们的BuChE抑制作用为中度至弱。其中,带有未取代香豆素部分的丙基吗啉衍生物5g(N- [3-(吗啉-4-基)丙基] -2-氧代-2H-色烯-3-羧酰胺)和乙基吗啉衍生物5d(6-溴-N- [2-带有6-溴香豆素部分的(吗啉-4-基)乙基] -2-氧代-2H-亚甲基-3-羧酰胺分别显示出对AChE和BuChE的最大活性。化合物5g对AChE的抑制活性是rivastigmine的1.78倍,化合