Highly Efficient O-Glycosylations with p-Tolyl Thioribosides and p-TolSOTf
摘要:
GraphicsA wide variety of p-tolyl thioriboside donors are examined for O-ribosylations of primary and secondary alcohols. p-Tolylsulfenyl trifluoromethanesulfonate (p-TolSOTf) is very effective in promoting O-ribosylations with p-tolyl thioriboside; all reactions are completed within 1-15 min to provide the desired products in good yield with reliable alpha/beta selectivity. A wide range of functional groups are tolerated under these conditions. The described O-ribosylation conditions are very useful for the generation of ribosaminouridine library molecules in solution or on polymer support.
Synthesis and Biological Activity of Tetrameric Ribitol Phosphate Fragments of <i>Staphylococcus aureus</i> Wall Teichoic Acid
作者:Yoon-Chul Jung、Jae-Hyeok Lee、Sang Ah Kim、Timo Schmidt、Wonchul Lee、Bok Luel Lee、Hee-Seung Lee
DOI:10.1021/acs.orglett.8b01725
日期:2018.8.3
A systematically designed and synthesized ribitol phosphate (RboP) oligomer using a series of building blocks, which make up the wall teichoic acid (WTA) of S. aureus, is presented. Based on the use of a solution-phase phosphodiester synthesis, a library of ribitol phosphate tetramers, decorated with d-alanine and N-acetylglucosamine (GlcNAc), were generated. The synthesized RboP tetramers showed increased
Highly Efficient <i>O</i>-Glycosylations with <i>p</i>-Tolyl Thioribosides and <i>p</i>-TolSOTf
作者:Michio Kurosu、Kai Li
DOI:10.1021/jo801408x
日期:2008.12.19
GraphicsA wide variety of p-tolyl thioriboside donors are examined for O-ribosylations of primary and secondary alcohols. p-Tolylsulfenyl trifluoromethanesulfonate (p-TolSOTf) is very effective in promoting O-ribosylations with p-tolyl thioriboside; all reactions are completed within 1-15 min to provide the desired products in good yield with reliable alpha/beta selectivity. A wide range of functional groups are tolerated under these conditions. The described O-ribosylation conditions are very useful for the generation of ribosaminouridine library molecules in solution or on polymer support.