Deoxyuridine Triphosphate Nucleotidohydrolase as a Potential Antiparasitic Drug Target
作者:Corinne Nguyen、Ganasan Kasinathan、Isabel Leal-Cortijo、Alexander Musso-Buendia、Marcel Kaiser、Reto Brun、Luis M. Ruiz-Pérez、Nils G. Johansson、Dolores González-Pacanowska、Ian H. Gilbert
DOI:10.1021/jm050111e
日期:2005.9.1
small-molecule inhibitors of the enzyme deoxyuridine 5'-triphosphate nucleotidohydrolase (dUTPase) from parasitic protozoa. The successful synthesis of a variety of analogues of dUMP is described in which the substituents are introduced at the 3'- and 5'-positions, together with variation in the heteroatom at the 5'-position. The compounds were assayed against recombinant Plasmodium falciparum and Leishmania
本文介绍了一项结构活性研究,旨在从寄生虫原生动物中鉴定出新型的小分子脱氧尿苷酶5'-三磷酸核苷酸水解酶(dUTPase)抑制剂。描述了dUMP的各种类似物的成功合成,其中在3'-和5'-位引入取代基,以及在5'-位杂原子的变化。对化合物进行了针对重组恶性疟原虫和利什曼原虫主要酶和人类酶的测定,以提供选择性的量度。还针对体外完整的寄生虫恶性疟原虫和多杀利什曼原虫对化合物进行了体外测试。已鉴定出许多恶性疟原虫dUTPase的有效和选择性抑制剂,这些抑制剂表现出类似药物的特性并代表了未来发展的良好线索。最好的抑制剂包括化合物5'-三苯甲基氨基-2',5'-二脱氧尿苷(2j)(Ki = 0.2 microM)和5'-O-三苯基甲硅烷基-2',3'-二氢氢化-2',3'-二脱氧尿苷(5h)(Ki = 1.3 microM),与人类酶相比,选择性大于200倍。确定了对抗疟原虫活性重要的结构特征。在体外