Amino acid based prodrugs of a fosmidomycin surrogate as antimalarial and antitubercular agents
作者:Charlotte Courtens、Martijn Risseeuw、Guy Caljon、Louis Maes、Anandi Martin、Serge Van Calenbergh
DOI:10.1016/j.bmc.2019.01.016
日期:2019.3
moiety as a prodrug has the potential to solve both issues. We report the application of two amino acid based prodrug approaches on a fosmidomycin surrogate. Conversion of the phosphonate moiety into tyrosine-derived esters increases the in vitro activity against asexual blood stages of P. falciparum, while phosphonodiamidate prodrugs display promising antitubercular activities. Selected prodrugs were tested
磷霉素是一种天然抗生素,具有有希望的IspC(DXR,1-脱氧-d-木酮糖-5-磷酸还原异构酶)抑制活性。该酶催化非甲羟戊酸类异戊二烯生物合成途径的第一步,这在恶性疟原虫和结核分枝杆菌中是必不可少的。磷霉素主要由于其高极性而显示出次佳的药代动力学性质。此外,由于磷霉素不能穿透细菌细胞壁,因此它对结核分枝杆菌无活性。暂时掩盖膦酸酯部分作为前药具有解决这两个问题的潜力。我们报道了基于两种氨基酸的前药方法在一种磷霉素替代品上的应用。膦酸酯部分向酪氨酸衍生的酯的转化增加了针对恶性疟原虫无性血液阶段的体外活性,而膦酰二氨基甲酸酯类前药显示出有希望的抗结核活性。在伯氏疟疾疟疾小鼠模型中体内测试了选定的前药。这些结果表明良好的体内抗疟原虫潜力。