Synthesis of Analogues of Acyclic Nucleoside Diphosphates Containing a (Phosphonomethyl)phosphanyl Moiety and Studies of Their Phosphorylation
作者:Petra Doláková、Martin Dračínský、Jindřich Fanfrlík、Antonín Holý
DOI:10.1002/ejoc.200800911
日期:2009.3
Acyclic nucleoside diphosphonate derivatives of purines and pyrimidines were prepared by Mitsunobu reaction of suitably protected heterocyclic bases with alcohols containing the (phosphonomethyl)phosphanyl moiety. Furthermore, nonhydrolyzable acyclic analogues of dUDP were prepared as potential inhibitors of dUTPase. Their phosphorylation to analogues of dUTP, however, gave mixtures of linear and branched
嘌呤和嘧啶的无环核苷二膦酸酯衍生物通过适当保护的杂环碱与含有(膦酰基甲基)膦酰基部分的醇的光信反应制备。此外,dUDP 的不可水解的无环类似物被制备为 dUTPase 的潜在抑制剂。然而,它们磷酸化为 dUTP 类似物,产生线性和支化磷酸盐的混合物。磷酸化反应的过程由 31 P NMR 光谱跟踪,我们发现膦酸酯和次膦酸酯部分都与 1,1'-羰基二咪唑和三正丁基磷酸铵反应。(膦酰基甲基)膦酰基体系的 pKa 值也通过 31P NMR 光谱测定(© Wiley-VCH Verlag GmbH & Co. KGaA,69451 Weinheim,德国,2009)