申请人:Hoechst Celanese Corporation
公开号:US05158872A1
公开(公告)日:1992-10-27
An aromatic substituted glycoside is disclosed of the formula ##STR1## wherein the configuration of the substituted --OR on the anomeric carbon is alpha, n is an integer of 0 or 1, and R is a substituted aromatic radical selected from the group ##STR2## where R.sub.1 through R.sub.6 are independently halogen, NO.sub.2, SO.sub.3 H, ##STR3## where R.sub.7 is lower alkyl; and includes its stereoisomers, optical isomers and geometric isomers and mixtures of the foregoing isomers. These substrates are useful as direct substrates for alpha-amylases. A process for the preparation of the substrates and related substances is also described.
本发明公开了一种芳香基取代的糖苷,其化学式为##STR1##其中,异构碳上取代的--OR的构型为α,n为0或1的整数,R为从组中选择的取代芳香基,组的选择为##STR2##其中,R.sub.1到R.sub.6独立地为卤素、NO.sub.2、SO.sub.3 H、##STR3##其中,R.sub.7为低碳基;包括其立体异构体、光学异构体、几何异构体和上述异构体的混合物。这些底物可作为α-淀粉酶的直接底物使用。还描述了制备底物和相关物质的方法。