Transforming Rhinacanthin Analogues from Potent Anticancer Agents into Potent Antimalarial Agents
作者:Ngampong Kongkathip、Narathip Pradidphol、Komkrit Hasitapan、Ronald Grigg、Wei-Chun Kao、Carola Hunte、Nicholas Fisher、Ashley J. Warman、Giancarlo A. Biagini、Palangpon Kongsaeree、Pitak Chuawong、Boonsong Kongkathip
DOI:10.1021/jm901545z
日期:2010.2.11
Twenty-four of the novel synthetic naphthoquinone esters showed significant antimalarial activity with IC50 values in the range of 0.03−16.63 μM. The length of the aliphatic chain and the presence of C-2′ substituents on the propyl chain affected the activity. Interestingly, compounds 31 and 37 showed very good antimalarial activity and were not toxic to normal Vero cells, and the PTI values of 31 (>1990
通过将1,4-萘醌醇与各种脂肪酸酯化,合成了26种新颖的萘醌脂族酯。由1-羟基-2-萘甲酸分九步制备1,4-萘醌醇,收率很高。24种新颖的合成萘醌酯类化合物显示出显着的抗疟活性,IC 50值在0.03−16.63μM的范围内。脂族链的长度和丙基链上C-2'取代基的存在影响活性。有趣的是,化合物31和37显示出非常好的抗疟活性,并且对正常的Vero细胞无毒,并且31(> 1990.38)和37(1825.94)的PTI值非常好。两个都图31和图37显示了对恶性疟原虫3D7 cyt bc 1的有效抑制作用,而对大鼠cyt bc 1没有抑制作用。他们显示了IC 50值在纳摩尔范围内,通过在Q o位点每个cyt bc 1单体结合了一种分子抑制剂,可以完全抑制cyt bc 1。