ribavirin were synthesized from ethyl C-ribosylpropiolate obtained by an alkynylation reaction mediated by indium(0). The C-ribosides were then engaged in a Huisgen 1,3-dipolar cycloaddition reaction under a micellar catalysis. In these conditions, formation of 1,2,3-triazoles with control of the regioselectivity was observed. The regiochemistry of the adducts was determined by HMBC 2D-NMR analysis.
                                    利巴韦林的
碳酸化类似物是由
铟(0)介导的炔基化反应获得的C-
核糖基
丙酸乙酯合成的。然后在胶束催化下使C-
核糖苷参与Huisgen 1,3-偶极环加成反应。在这些条件下,观察到在控制区域选择性的情况下形成
1,2,3-三唑。通过HMBC 2D-NMR分析确定加合物的区域
化学。