Application of Phosphoramidate ProTide Technology Significantly Improves Antiviral Potency of Carbocyclic Adenosine Derivatives
作者:Christopher McGuigan、Alshaimaa Hassan-Abdallah、Sheila Srinivasan、Yikang Wang、Adam Siddiqui、Susan M. Daluge、Kristjan S. Gudmundsson、Huiqiang Zhou、Ed W. McLean、Jennifer P. Peckham、Thimysta C. Burnette、Harry Marr、Richard Hazen、Lynn D. Condreay、Lance Johnson、Jan Balzarini
DOI:10.1021/jm060776w
日期:2006.11.30
phosphoramidate pronucleotide (ProTide) technology to the antiviral agent carbocyclic L-d4A (L-Cd4A). The phenyl methyl alaninyl parent ProTide of L-Cd4A was prepared by Grignard-mediated phosphorochloridate reaction and resulted in a compound with significantly improved anti-HIV (2600-fold) and HBV activity. We describe modifications of the aryl, ester, and amino acid regions of the ProTide and how these changes
我们报告了氨基磷酸酯原核苷酸(ProTide)技术在抗病毒剂碳环L-d4A(L-Cd4A)中的应用。L-Cd4A的苯基甲基丙氨酸基母体ProTide是通过格利雅(Grignard)介导的磷酰氯反应制备的,得到的化合物具有显着改善的抗HIV(2600倍)和HBV活性。我们描述了ProTide的芳基,酯和氨基酸区域的修饰,以及这些变化如何影响抗病毒活性和代谢稳定性。注意到针对HIV和HBV的SAR分别且不同。另外,由D-核苷D-Cd4A和双脱氧类似物L-CddA和D-CddA制备ProTide。与母体药物相比,这些化合物显示出更适度的效能改善。综上所述,当将ProTide方法应用于L-Cd4A时,在体外的效价提高了9000倍,非常成功,抗HIV的能力提高了。为了临床前候选人的选择,我们使用食蟹猴肝脏和肠道S9馏分进行了代谢稳定性研究。