the cage forming amino acids of Trp430 and Phe466, and were also further evaluated against antifungal activity on Aspergillus niger by taking Clotrimazole as standard. Out of twelve synthesized compounds 9a, 9b, 9g, and 9h were showed good and 9c, 9d, 9e, 9i, 9j, and 9k were showed moderate antifungal activity.
通过Vilsmeier-Haack甲酰化反应,以面部方式从取代的6-羟基-4-甲基
香豆素开始,以良好的收率获得了一系列含有
吡唑-4-
甲醛的
香豆素衍
生物(9a - l),并通过以下方法确定了它们的
化学结构:傅里叶变换红外,1 H,13 C核磁共振和质谱技术。化合物9a – l与黑曲霉的单胺氧化酶对接,并与形成色
氨酸Trp430和Phe466的笼子发生强烈的π堆积相互作用,并以
克霉唑为标准,进一步评估了其对黑曲霉的抗真菌活性。在十二种合成化合物中,9a,9b,9g和9h表现良好,9c,9d,9e,9i,9j和9k表现出中等的抗真菌活性。