Chemoselective Activation of Nucleoside 3‘-<i>O</i>-Methylphosphonothioates with 1,3,5-Triazinyl Morpholinium Salts
作者:Lucyna A. Wozniak、Marcin Góra、Wojciech J. Stec
DOI:10.1021/jo7014906
日期:2007.10.1
Chemoselective and stereospecific O-activation of 2‘-deoxynucleoside 3‘-O-methylphosphonothioates 5 with N-methyl-N-4,6-dimethoxy-1,3,5-triazin-2-yl morpholinium salts results in formation with retention of configuration of 5‘-O-DMT-2‘-deoxynucleoside 3‘-O-(4,6 dimethoxy-1,3,5-triazin-2-yl methylphosphonothioates (7). Active esters 7 are convenient intermediates for hydrolytic interconversion of RP-5
化学选择性和立体ö -activation的2'-脱氧核苷3'- ö -methylphosphonothioates 5与Ñ甲基Ñ -4,6-二甲氧基-1,3,5-三嗪-2-基吗啉盐导致形成与保持5'- O -DMT-2'-脱氧核苷3'- O-(4,6二甲氧基-1,3,5-三嗪-2-基甲基硫代磷酸酯(7)的构型。活性酯7是水解中间体相互转化的便利中间体R P - 5到S P - 5 可用作立体选择性合成二核苷(3',5')-甲基硫代磷酸酯的单体。