寻找能够赋予核糖核苷亚磷酰胺具有与脱氧核糖核苷亚磷酰胺相当的偶联动力学和偶联效率的2'-OH保护基,导致通过固相RNA评估了2'-O-(4-硝化苄氧基)甲基使用亚磷酰胺2a-d,12a和14a进行合成。这些亚磷酰胺显示出快速和有效的偶联性能。特别值得注意的是0.1 M AcOH中2'-O- [4-(N-甲基氨基)苄氧基]甲基的裂解,这在90摄氏度下于15分钟内导致U19dT。
Development of Bioreduction Labile Protecting Groups for the 2′-Hydroxyl Group of RNA
作者:Hisao Saneyoshi、Kodai Nakamura、Kazuma Terasawa、Akira Ono
DOI:10.1021/acs.orglett.0c02086
日期:2020.8.7
and deprotection of the 2′-hydroxyl group of RNAs are critical for RNA-based drug discovery. This paper reports development of a bioreduction labile protectinggroup of the 2′-hydroxyl group in RNA. After the reduction of the nitro group in a chemical or enzymatic manner, the protectinggroups were removed spontaneously. The attachment of electron-donating groups to the benzene ring or benzylic carbon
p-nitrobenzyloxymethyl: A new fluoride-removable protecting group for ribonucleoside 2′-hydroxyls
作者:G.R. Gough、T.J. Miller、N.A. Mantick
DOI:10.1016/0040-4039(95)02357-7
日期:1996.2
A novel protectinggroup for the 2′-hydroxyl of ribonucleosides, p-nitrobenzyloxymethyl, is used in the rapid solid phase synthesis of the oligonucleotide U(U)11U; it can be readily removed from the oligomer product by treatment with tetrabutylammonium fluoride.