An investigation into the anti-HIV activity of 2′,3′-didehydro-2′,3′-dideoxyuridine (d4U) and 2′,3′-dideoxyuridine (ddU) phosphoramidate ‘ProTide’ derivatives
作者:Youcef Mehellou、Jan Balzarini、Christopher McGuigan
DOI:10.1039/b904276h
日期:——
As part of our studies on the anti-HIV activities of 2′,3′-didehydro-2′,3′-dideoxyuridine (d4U), 2′,3′-dideoxyuridine (ddU) and their ‘ProTides’, we have prepared and evaluated the anti-HIV activity of a range of d4U and ddU aryl triester phosphoramidates. Besides elucidating SAR characteristics, we performed molecular modelling studies on both d4U and ddU in order to probe the first phosphorylation
作为我们对艾滋病毒的抗HIV活性研究的一部分 2',3'-二脱氢-2',3'-二脱氧尿苷 (d4U), 2',3'-二脱氧尿苷(ddU)及其“ ProTides”,我们已经制备并评估了一系列d4U和ddU芳基三酯氨基磷酸酯的抗HIV活性。除了阐明SAR特性外,我们还对d4U和ddU进行了分子建模研究,以探究激活这两个核苷类似物所需的第一步磷酸化步骤。总体而言,氨基磷酸酯方法的应用将无活性的ddU变成了中等活性的抗HIV药物,而d4U则不是这样。研究d4U氨基磷酸酯代谢的酶法测定显示,有效分解了氨基磷酸酯基序以释放d4U单磷酸酯。因此,在这种情况下,不良的第二和/或第三磷酸化步骤可能是实际上缺乏抗HIV活性的最可能原因。