Synthesis of 2′-Deoxy-1′-homo-<i>N</i>-nucleosides with Anti-Influenza Activity by Catalytic Methyltrioxorhenium (MTO)/H<sub>2</sub>O<sub>2</sub>Oxyfunctionalization
作者:Raffaele Saladino、Veronica Neri、Paola Checconi、Ignacio Celestino、Lucia Nencioni、Anna Teresa Palamara、Marcello Crucianelli
DOI:10.1002/chem.201201285
日期:2013.2.11
oxidation of 1′‐homo‐N‐thionucleosides, showed the occurrence of site‐specific oxidative nucleophilic substitutions of the heterocyclic ring. The MTO/H2O2 system showed, in general, high reactivity under both homogeneous and heterogeneous conditions, affording the final products with high conversion values of substrates and from medium to high yields. Many of the novel 1′‐homo‐N‐nucleoside analogues were active
本文介绍了一种新的途径,可以通过甲基三氧nucleo(MTO)或负载型MTO催化剂,以H 2 O 2为主要氧化剂,合成1'-homo- N-核苷衍生物。在这些选择条件下,无论所用的底物类型为嘌呤或嘧啶衍生物,杂环的氧官能化和N杂原子氧化都是有效的过程。此外,1'-同型N-硫代核苷的氧化表明杂环发生了位点特异性氧化亲核取代。MTO / H 2 O 2该系统通常显示出在均相和非均相条件下均具有高反应活性,为最终产物提供了高底物转化率和中等至高收率的最终产物。许多新颖的1'-homo- N-核苷类似物对A型流感病毒都具有活性,而没有任何细胞毒性作用,并以受保护和不受保护的形式保留其活性。