A straightforward α-selective aromatic glycosylation and its application for stereospecific synthesis of 4-methylumbelliferyl α-T-antigen

被引:14
作者
Chang, Shih-Sheng [1 ]
Lin, Chun-Cheng [2 ]
Li, Yaw-Kuen [1 ]
Mong, Kwok-Kong Tony [1 ]
机构
[1] Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu, Taiwan
[2] Natl Tsing Hua Univ, Dept Chem, Hsinchu, Taiwan
关键词
Stereoselective; Aromatic; Glycosylation; Imidate; alpha-T-Antigen; BETA-D-GLUCOPYRANOSIDES; N-ACETYLGALACTOSAMINIDASE; STEREOSELECTIVE-SYNTHESIS; OXOCARBENIUM ION; GLYCOSIDES; PHASE; DERIVATIVES; PHENOLS; OLIGOSACCHARIDES; XYLOSIDE;
D O I
10.1016/j.carres.2008.12.013
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A practical and efficient alpha-selective aromatic glycosylation with simple per-O-acetyl glycopyranosyl trichloroacetimidates is reported. The method is particularly effective for L-fucosyl and 2-azido-2-deoxy-D-galatosaminyl imidates, with which exclusive alpha-selectivity was achieved. The synthetic utility of this method was demonstrated in the stereoselective synthesis of 4-methylumbelliferyl alpha-T-antigen. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:432 / 438
页数:7
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