A new method for the synthesis of nucleoside 2′,3′-O,O-cyclic phosphorodithioates via aryl cyclic phosphites as intermediates
作者:Małgorzata Wenska、Jadwiga Jankowska、Michał Sobkowski、Jacek Stawiński、Adam Kraszewski
DOI:10.1016/s0040-4039(01)01695-1
日期:2001.11
formation of the corresponding 4-nitrophenyl 2′,3′-O,O-cyclic phosphites which upon sulfhydrolysis, followed by sulfurization of the resultant cyclic H-phosphonothioate and removal of the 5′-O-protecting groups, afforded nucleoside 2′,3′-O,O-cyclic phosphorodithioates in high yields.
在吡啶存在下5'- O-保护的核糖核苷与亚磷酸三(4-硝基苯基)酯的反应提供了相应的4-硝基苯基2',3'- O,O-环亚磷酸酯的快速形成,其在硫水解后,随后将所得的环状H-硫代磷酸硫酯硫化并除去5'- O-保护基,以高收率得到核苷2',3'- O,O-环二硫代磷酸酯。