Preparation of Short Oligonucleotides via the Phosphoramidite Method Using a Tetrazole Promoter in a Catalytic Manner
作者:Yoshihiro Hayakawa、Masanori Kataoka
DOI:10.1021/ja970685b
日期:1997.12.1
(0.05 equiv) in the presence of molecular sieves 13X in acetonitrile (40 °C, 60 min) followed by trimethylsilyl triflate-catalyzed oxidation with bis(trimethylsilyl) peroxide in dichloromethane (40 °C, 10 min). The NPT-catalytic approach is also effective for the synthesis of longer deoxyribonucleotides such as d(5‘CTACCTGT3‘) and 2‘−5‘- or 3‘−5‘-linked ribonucleotides.
已经开发了一种以催化方式使用四唑促进剂的简便亚磷酰胺方法,用于核苷 3'-亚磷酰胺和核苷的缩合。这种方法对于短寡核苷酸的大规模合成特别有用。例如,通过核苷 3'-N,N-二乙基亚磷酰胺(1.05 当量)和 5'-O-游离核苷(1.00 当量)与 5-( p-硝基苯基)-1H-四唑 (NPT)(0.05 当量)在分子筛存在下 13X 在乙腈中(40 °C,60 分钟),然后在二氯甲烷中用双(三甲基甲硅烷基)过氧化物催化氧化(40 °C,60 分钟) C,10 分钟)。