Synthesis and biological activity of certain 6-substituted and 2,6-disubstituted 2'-deoxytubercidins prepared via the stereospecific sodium salt glycosylation procedure
作者:Howard B. Cottam、Zygmunt Kazimierczuk、Stewart Geary、Patricia A. McKernan、Ganapathi R. Revankar、Roland K. Robins
DOI:10.1021/jm00148a015
日期:1985.10
A number of 6-substituted and 2,6-disubstituted pyrrolo[2,3-d]pyrimidine 2'-deoxyribonucleosides were prepared by the direct stereospecific sodium salt glycosylation procedure. Reaction of the sodium salt of 4-chloro-6-methyl-2-(methylthio)pyrrolo[2,3-d]pyrimidine (6a) or 4,6-dichloro-2-(methylthio)pyrrolo[2,3-d]pyrimidine (6b) with 1-chloro-2-deoxy-3,5-di-O-p-toluoyl-alpha-D-erythro-pentofuranose
通过直接立体特异性钠盐糖基化方法制备了许多6-取代的和2,6-二取代的吡咯并[2,3-d]嘧啶2'-脱氧核糖核苷。4-氯-6-甲基-2-(甲硫基)吡咯并[2,3-d]嘧啶(6a)或4,6-二氯-2-(甲硫基)吡咯并[2,3-d]的钠盐反应] pyrimidine(6b)与1-chloro-2-deoxy-3,5-di-Op-toluoyl-alpha-D-erythro-pentofuranose(9)提供相应的N7 2'-deoxy-beta-D-rifur呋喃糖基保护的衍生物(8a和8c)经氨解后得到4-氨基-6-甲基-2-(甲硫基)-7-(2-脱氧-β-D-赤型-戊呋喃糖基)吡咯并[2,3-d]嘧啶( 11a)和4-氨基-6-氯-2-(甲硫基)-7-(2-脱氧-β-D-赤-五呋喃糖基)吡咯并[2,3-d]嘧啶(11b)。脱去11a和11b,得到6-甲基-2'-脱氧结核菌素(10a)和6-氯-2'