Pre-activation of fully acetylated dodecyl thioglycosides with BSP–Tf2O led to efficient glycosylation at low temperature
作者:Sang-Hyun Son、Chiharu Tano、Tetsuya Furuike、Nobuo Sakairi
DOI:10.1016/j.carres.2008.11.008
日期:2009.2
Fully acetylated dodecyl thioglycosides were found to be useful as glycosyl donors by activation with 1-benzenesulfinyl piperidine (BSP) and triflic anhydride (Tf2O) at -78 degrees C. The glycosyl acceptor was added to the reaction mixture at the same temperature to furnish various disaccharide, including the protected Lewis a (Le(a)) trisaccharide, in good yields. (C) 2008 Elsevier Ltd. All rights reserved.