New praziquantel derivatives containing NO-donor furoxans and related furazans as active agents against Schistosoma mansoni
作者:Stefano Guglielmo、Daniela Cortese、Francesca Vottero、Barbara Rolando、Valerie P. Kommer、David L. Williams、Roberta Fruttero、Alberto Gasco
DOI:10.1016/j.ejmech.2014.07.007
日期:2014.9
praziquantel hybrid compounds was obtained by combining praziquantel (PZQ) and furoxan moieties in a single entity. NO-donor properties of the furoxan derivatives were evaluated by detecting nitrite after incubation of the products in 7.4 pH buffered solution in the presence of l-cysteine. Structurally-related furazans, devoid of NO release capacity, were also synthesized for control purposes. All
通过将吡喹酮 (PZQ) 和呋喃酮部分组合在一个实体中,获得了一系列 NO 供体吡喹酮杂化化合物。通过在存在L-半胱氨酸的情况下将产物在 7.4 pH 缓冲溶液中温育后检测亚硝酸盐来评估呋喃酮衍生物的 NO 供体性质。为了控制目的,还合成了结构相关的呋喃嗪,缺乏 NO 释放能力。研究了所有产品抑制重组曼氏血吸虫硫氧还蛋白谷胱甘肽还原酶(TGR)的能力。与 PZQ 相比,评估了在产品存在下培养的成年曼氏血吸虫蠕虫的活动性和死亡。结果分析表明,一些产品同时具有PZQ和NO依赖性抗寄生虫特性。化合物6、7、18和24成为最有趣的平衡杂种,值得对 PZQ 抗性寄生虫进行进一步研究。