Synthesis, structure, and biological activity of certain 2-deoxy-.beta.-D-ribo-hexopyranosyl nucleosides and nucleotides
作者:L. Dee Nord、N. Kent Dalley、Patricia A. McKernan、Roland K. Robins
DOI:10.1021/jm00389a015
日期:1987.6
and conformation of other nucleosides were determined by proton magnetic resonance analysis of the 4-nitrobenzoylated nucleosides. Nucleoside 6'-monophosphates of 7, 13, and 2 and the 4',6'-cyclic monophosphate of 2 were also prepared. All 2'-deoxy-D-ribo-hexopyranosyl nucleosides and 6'-monophosphate derivatives were tested in vitro for antiviral and antitumor activity. The guanosine analogue 23 was
通过路易斯酸催化的缩合反应合成了带有腺嘌呤(2),次黄嘌呤(17),鸟嘌呤(23),胞嘧啶(13)和尿嘧啶(7)作为糖苷的2-Deoxy-β-D-ribo-hexopyranosyl核苷。合适的三甲基甲硅烷基化的杂环碱和2-脱氧-1,3,4,6-四-O-(4-硝基苯甲酰基)-β-D-核糖己糖+ ++(5)的收率高。当通过甲硅烷基化的尿嘧啶与2-deoxy-3,4,6-tris-O-(4-硝基苯甲酰基)-alpha-D-ribo-hexopyranosyl bromide(8)之间的反应尝试通过SN2取代7时,主要产物1-(2-脱氧-3,4,6-三-O-(4-硝基苯甲酰基)-α-D-核糖-己吡喃糖基)-2,4-嘧啶二酮(9)保留了α构型异头碳。1-(2-deoxy-D-ribo-hexopyranosyl)-2的两个端基的结构 通过单晶X射线方法分配4-嘧啶二酮。通过4-硝基苯甲酰化核苷的质