Synthesis of novel tetrazole C5-linked C0- and C2-ribonucleoside phosphoramidites using MePOM and POM groups for probing RNA catalysis
作者:Shinya Harusawa、Hiroki Yoneyama、Daiki Fujisue、Masayoshi Nishiura、Mihoyo Fujitake、Yoshihide Usami、Zheng-yun Zhao、Scott A. McPhee、Timothy J. Wilson、David M.J. Lilley
DOI:10.1016/j.tetlet.2012.08.082
日期:2012.10
Novel C5-linked C-0- and C-2-tetrazole ribonucleoside phosphoramidites were designed and synthesized via tetrazole C-nucleosides. Pivaloyloxymethyl (POM) and methyl-substituted POM (MePOM) groups were introduced as N-protecting groups in the tetrazole ring that can be readily removed under mild basic conditions. The phosphoramidites were successfully incorporated into the VS ribozyme substrate and hence providing a chemogenetic approach to determine which nucleobases of ribozymes function as the acid or base, in the studies of ribozyme general acid and base catalysis. (C) 2012 Elsevier Ltd. All rights reserved.