Synthesis, DNA Affinity, and Antiprotozoal Activity of Fused Ring Dicationic Compounds and Their Prodrugs
作者:Reem K. Arafa、Reto Brun、Tanja Wenzler、Farial A. Tanious、W. David Wilson、Chad E. Stephens、David W. Boykin
DOI:10.1021/jm058190h
日期:2005.8.1
treated animals in the STIB900 animal model for African trypanosomiasis. The N-methyl analogue showed high activity as well. In addition, with the goal of enhancing the oral bioavailability, two novel classes of potential guanidine prodrugs were prepared. The N-alkoxyguanidine derivatives were not effective as prodrugs. In contrast, a number of the carbamates showed promising activity. The value of the
由它们相应的双胺合成了稠环系统的二阳离子胍,N-烷基胍和反向am衍生物。DNA结合研究表明,二胍和N-烷基二胍芴以较小的方式结合在小沟中,其方式与先前报道的二甲基咔唑衍生物相似。双胍和N-烷基双胍显示出有希望的针对布鲁氏锥虫和恶性疟原虫的体外活性。有用的N-异丙基胍基-9H-芴获得了有希望的体内生物学结果,为非洲锥虫病的STIB900动物模型提供了4/4种治疗动物的治愈方法。N-甲基类似物也显示出高活性。另外,以提高口服生物利用度为目标,制备了两种新型的潜在胍类前药。N-烷氧基胍衍生物不能有效地用作前药。相反,许多氨基甲酸酯显示出有希望的活性。结果清楚地表明了氨基甲酸酯前药的价值,该药物在STIB900小鼠模型中口服给药时可治愈4/4。