Synthesis and antiviral activity of phosphonoacetic and phosphonoformic acid esters of 5-bromo-2'-deoxyuridine and related pyrimidine nucleosides and acyclonucleosides
作者:Robert W. Lambert、Joseph A. Martin、Gareth J. Thomas、Ian B. Duncan、Michael J. Hall、Edgar P. Heimer
DOI:10.1021/jm00122a014
日期:1989.2
Phosphonoacetic acid (PAA, 1) was coupled with various acyclonucleosides, 2'-deoxyuridines, cytidines, and arabinosyluracils, with 2,4,6-triisopropylbenzenesulfonyl chloride (TPS) or dicyclohexylcarbodiimide (DCCI) as condensing agents, to give a range of phosphonate esters. The carboxylic ester linkage of PAA to the 5'-position of 5-bromo-2'-deoxyuridine (BUdR, 3) was achieved via the mixed anhydride
磷乙酸(PAA,1)与各种无环核苷,2'-脱氧尿苷,胞嘧啶核苷和阿拉伯糖基尿嘧啶偶合,并带有2,4,6-三异丙基苯磺酰氯(TPS)或二环己基碳二亚胺(DCCI)作为缩合剂,得到一系列膦酸酯酯。通过由(二乙基膦酰基)乙酸和三氟乙酸酐形成的混合酸酐,将PAA的羧酸酯键连接到5-溴-2'-脱氧尿苷(BUdR,3)的5'位置。通过使用DCCI方法将膦甲酸(PFA,2)与BUdR偶联,得到膦酸酯。在这些化合物中,只有2'-脱氧尿苷系列的膦酸酯对1型和2型单纯疱疹病毒显示出显着活性。BUdR-PAA衍生物和BUdR-PFA衍生物具有很高的活性,尤其是后者。它比亲本核苷BUdR对2型病毒更具活性。活性化合物可通过细胞外或细胞内水解作用作用于相应的抗病毒剂,但也可能涉及抗病毒活性的内在成分。