A highly practical synthesis of sulfated Lewis X: One-pot, two-step glycosylation using ''armed/disarmed'' coupling and selective benzoylation and sulfation

被引:48
作者
Tsukida, T [1 ]
Yoshida, M [1 ]
Kurokawa, K [1 ]
Nakai, Y [1 ]
Achiha, T [1 ]
Kiyoi, T [1 ]
Kondo, H [1 ]
机构
[1] KANEBO LTD,NEW DRUG RES LABS,DEPT MED CHEM,MIYAKOJIMA KU,OSAKA 534,JAPAN
关键词
D O I
10.1021/jo970076m
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
In spite of the several attractive biological activities of the Le(x), sLe(x), and sulfated Le(x) derivatives, there are still limitations in their practical syntheses. One of the most difficult problems is the many steps required for their syntheses. Therefore, we investigated simple constructions of the Le(x) analogs and succeeded in establishing highly practical syntheses of the Le(x) and sulfated Le(x) analogs. Especially, the ''armed/disarmed'' method allowed the first synthesis of Le(x) derivatives by a one-pot, two-step glycosylation. This synthetic strategy could be an applicable and useful method for oligosaccharide constructions of Le(x), sulfated Le(x), and other derivatives.
引用
收藏
页码:6876 / 6881
页数:6
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