bis-amidates in excellent yields (83–98%) and purity. The methodology has been applied to the synthesis of the potent anticancer agent GS-9219, and symmetrical bis-amidates of other biologically active phosphonic acids. Anti-HIV, antiproliferative, and immunomodulatory activities of the compounds are discussed including the bis-amidate prodrugs 14 and 17 that exhibited anti-HIV activity at submicromolar
报道了一种从游离
膦酸或
膦酸酯二酯开始一锅合成无环核苷
膦酸酯的二酰胺(双酰胺)前体药物的新颖有效的方法。
膦酸酯二酯通过其双(三甲基甲
硅烷基)酯的方法非常方便,消除了
膦酸的分离和繁琐的纯化,并以极佳的收率(83-98%)和纯度提供了相应的双
氨基酸酯。该方法已应用于有效的抗癌药GS-9219以及其他具有
生物活性的
膦酸的对称双
氨基酸盐的合成。讨论了该化合物的抗HIV,抗增殖和免疫调节活性,包括双
氨基酸盐前药14和17 在亚微摩尔浓度下表现出抗HIV活性,且细胞毒性最小。