An aromatic substituted glycoside is disclosed of the formula
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
where R through R6 are independently halogen, NO2, S03H,
where R7 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族取代的糖苷,其式中,取代的-OR 在异构碳上的构型为α,n 为 0 或 1 的整数,R 为取代的芳香基,选自 R 至 R6 独立地为卤素、
NO2、S03H 的基团,其中 R7 为低级烷基;并包括其立体异构体、光学异构体和几何异构体以及前述异构体的混合物。 这些底物可作为
α-淀粉酶的直接底物。 本发明还描述了制备这些底物及相关物质的工艺。