Reactions of 3′-C-Halomethyl and 3′-C-Sulfonylmethyl Uridines with Phosphinic Acid Derivatives − Synthesis of Building Blocks for Oligonucleotides Containing 3′-C-Methylenephosphonate Linkages
作者:Anna Winqvist、Roger Strömberg
DOI:10.1002/1099-0690(200205)2002:9<1509::aid-ejoc1509>3.0.co;2-x
日期:2002.5
method for the synthesis of nucleoside 3′-C-methylenephosphinates, building blocks for oligo(ribonucleoside methylenephosphonate)s, has been developed. Treatment of bis(trimethylsilyl)hypophosphite (BTSP) with a 3′-deoxy-3-C-(iodomethyl)uridine resulted both in substitution to give the corresponding 3′-C-methylenephosphinate and in reduction of the iodomethyl group to afford the uridine 3′-deoxy-3′-C-methyl
已开发出一种合成核苷 3'-C-亚甲基次膦酸酯的有效方法,这是寡聚(核糖核苷亚甲基膦酸酯)的构建单元。用 3'-脱氧-3-C-(碘甲基)尿苷处理双(三甲基甲硅烷基)次磷酸酯(BTSP)导致取代得到相应的 3'-C-亚甲基次膦酸酯,并导致碘甲基基团的还原得到尿苷3'-脱氧-3'-C-甲基衍生物。溶剂和温度的优化使置换/还原比最多为 5:4。然而,通过使用三氟甲磺酰基离去基团和进一步优化反应条件,三乙铵 2'-O-(叔丁基二甲基甲硅烷基)-3'-脱氧-5'-O-(4-甲氧基三苯基甲基)尿苷-3'-以93%的分离产率获得C-亚甲基次膦酸酯。(© Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany,