Anti-leishmanial effect of spiro dihydroquinoline-oxindoles on volume regulation decrease and sterol biosynthesis of Leishmania braziliensis
作者:Jacques Leañez、Jorge Nuñez、Yael García-Marchan、Felipe Sojo、Francisco Arvelo、Daniel Rodriguez、Ignacio Buscema、Alvaro Alvarez-Aular、Josué S. Bello Forero、Vladímir V. Kouznetsov、Xenón Serrano-Martín
DOI:10.1016/j.exppara.2019.01.011
日期:2019.3
Diverse spiro dihydroquinoline-oxindoles (JS series) were prepared using the BF3•OEt2-catalyzed imino Diels-Alder reaction between ketimine-isatin derivatives and trans-isoeugenol. Ten spiro-oxiindole derivatives were selected and evaluated at different stages of the life cycle of Leishmania braziliensis parasites, responsible for cutaneous leishmaniasis in South America. Among them, the 8'-ethyl-
利用BF3•OEt2催化的亚氨基酮亚胺衍生物与反式异丁香酚之间的亚氨基Diels-Alder反应,制备了多种螺二氢喹啉-羟吲哚(JS系列)。选择了十种螺-肟基吲哚衍生物,并在巴西利什曼原虫的生命周期的不同阶段进行了评估,这些寄生虫负责南美的皮肤利什曼病。其中,8'-乙基-4'-(4-羟基-3-甲氧基苯基)-3'-甲基-3',4'-二氢-1'H-螺[吲哚啉-3,2'-喹啉] -2-一个称为JS87的化合物能够抑制前鞭毛体的生长,而又不影响哺乳动物细胞的活力,并能减少巴西乳杆菌的胞内变形虫的数量。发现这种螺环化合物可通过破坏调节体积减少(RVD)来改变寄生虫内部调节,从而发挥作用,并在角鲨烯环氧酶(SE)酶水平上影响固醇的生物合成途径。这些结果表明,喹啉和羟吲哚支架之间的螺环环线增强了抗利什曼原虫的活性,并可能有助于对抗南美利什曼病的主要病原体巴西利什曼原虫的有效喹啉-羟吲哚杂种的发展。