作者:Mitsuo Fujii、Kouji Ozaki、Mitsuo Sekine、Tsujiaki Hata
DOI:10.1016/s0040-4020(01)81630-6
日期:1987.1
synthesized by a new method via dideoxyribonucleoside 2,2,2-trichloroethoxycarbonylphosphonates and aroylphosphonates. The conversion of dideoxyribonucleoside 2,2,2-trichloroethoxycarbonylphosphonates to dideoxyribonucleoside trimethylsilyl phosphites by treatment with Me3SiCl-Zn-acetylacetone proceeded with retention configuration at phosphorus. The silyl phosphite intermediates were converted to the phosphorothioates
通过二脱氧核糖核苷2,2,2-三氯乙氧基羰基膦酸酯和芳酰基膦酸酯通过新方法合成了脱氧核糖核苷硫代磷酸酯。通过用Me 3 SiCl-Zn-乙酰丙酮处理,将双脱氧核糖核苷2,2,2-三氯乙氧基羰基膦酸酯转化为双脱氧核糖核苷三甲基甲硅烷基亚磷酸酯,在磷处具有保留构型。通过用硫原位处理将亚磷酸甲硅烷基酯中间体转化为硫代磷酸酯。通过n-BuNH 2的作用,很容易将芳酰基从8-11上除去,并通过单质硫处理原位转化为双脱氧核糖核苷硫代磷酸酯中的仅一种非对映异构体(Rp-构型)。