作者:Liu Jie、Arthur Van Aerschot、Jan Balzarini、Gerard Janssen、Roger Busson、Jos Hoogmartens、Erik De Clercq、Piet Herdewijn
DOI:10.1021/jm00171a023
日期:1990.9
However, O4-methyl-protected 2',3'-dideoxyuridine readily afforded the 5'-O-phosphonomethylated derivative 12, which was converted to both the 2',3'-didoxyuridine analogue 27 and the 2',3'-dideoxycytidine counterpart 29. The 5'-O-phosphonomethyl derivatives of 3'-deoxythymidine (23), 2',3'-dideoxyuridine, (27), 2',3'-dideoxycytidine (29), 3'-O-methylthymidine (26), and 3'-amino-3'-deoxythymidine (28)
通过在氢化钠存在下使后者与[(对甲苯磺酰基)氧基]甲膦酸二乙酯(1)反应,实现不同嘧啶2',3'-二脱氧核苷的5'-O-膦酰基甲基化。通过1H和13C NMR和MS分析可以轻松地区分碱基膦酰基甲基化(15-19)和糖膦酰基甲基化(8-12)衍生物。用N3-苯甲酰基保护尿嘧啶或胸腺嘧啶残基不能阻止碱基修饰。然而,O4-甲基保护的2',3'-二脱氧尿苷容易得到5'-O-膦酰基甲基化的衍生物12,该衍生物被转化为2',3'-二脱氧尿苷类似物27和2',3'-二脱氧胞苷。对应物29. 3'-脱氧胸苷(23),2',3'-二脱氧尿苷,(27),2',3'的5'-O-膦酰基甲基衍生物 -二脱氧胞苷(29),3'-O-甲基胸苷(26)和3'-氨基-3'-脱氧胸苷(28)在MT-4细胞中未显示出明显的抗HIV活性。相反,3'-脱氧-3'-氟胸苷(24)和3'-叠氮基3'-脱氧胸苷(25)的5'-O-膦酰基