Stereoselective synthesis of benzyl-protected β-galactosides by propionitrile-mediated glycosylation
                                
                                    
                                        作者:Akiharu Ueki、Masafumi Hirota、Yuta Kobayashi、Keiko Komatsu、Yutaka Takano、Michio Iwaoka、Yuko Nakahara、Hironobu Hojo、Yoshiaki Nakahara                                    
                                    
                                        DOI:10.1016/j.tet.2008.01.029
                                    
                                    
                                        日期:2008.3
                                    
                                    beta-Selective galactosylation was studied using a series of 2-O-benzylated phenyl 1-thio-galactosides and glycosyl acceptors in propionitrile with BSP-TTBP-Tf2O. The glycosylation enabled us to synthesize useful precursors of N-acetyllactosamine and core 1 O-glycoserine derivatives in a highly convergent manner. (c) 2008 Elsevier Ltd. All rights reserved.