A paradigm case for the merging of glycal and enzymatic assembly methods in glycoconjugate synthesis: A highly efficient chemo-enzymatic synthesis of GM(3)

被引:13
作者
Liu, KKC
Danishefsky, SJ
机构
[1] COLUMBIA UNIV,DEPT CHEM,NEW YORK,NY 10027
[2] PFIZER INC,CENT RES CTR,GROTON,CT 06340
关键词
anhydrosugars; enzymatic catalysis; gangliosides; glycoconjugates; glycosidations;
D O I
10.1002/chem.19960021105
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A concise, regio- and stereoselective synthesis of the ganglioside GM(3) has been achieved. Use of an alpha-1,2-oxirane derived from lactal facilitated installation of the anomeric beta-ceramide side chain. Introduction of the sialic acid residue at C-3, of the lactose was accomplished regiospecifically by enzymatically mediated sialyl transfer from CMP-Neu-5-Ac.
引用
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页码:1359 / 1362
页数:4
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