Synthesis of ribonucleoside 3′,5′-cyclic phosphorothioates using a modified hydroxybenzotriazole phosphotriester approach
作者:E. de Vroom、G. A. van der Marel、J. H. van Boom
DOI:10.1002/recl.19871061106
日期:——
Phosphorothioylation of 3′,5′-dihydroxyl ribonucleosides with O-(2-chlorophenyl) O, O-bis[6-(trifluoromethyl)-1-benzotriazolyl] phosphorothioate, followed by addition of N-methyl-imidazole and removal of protecting groups, gives ribonucleosides 3′,5′-cyclic phosphorothioates. The latter compounds could also be prepared by phosphorothioylation of 2′,3′,5′-trihydroxyl ribonucleosides.
用O-(2-氯苯基)O,O-双[6-(三氟甲基)-1-苯并三唑基]硫代磷酸酯对3',5'-二羟基核糖核苷进行硫代磷酸化,然后添加N-甲基-咪唑并除去保护基得到核糖核苷3',5'-环硫代磷酸酯。后者的化合物也可以通过2',3',5'-三羟基核糖核苷的硫代磷酸化来制备。