This invention provides novel chromogenic enzyme substrates which are indoxyl β-D-ribofuranosides. A process for their production is provided. Methods for detecting β-D-ribofuranosidase activity are given. The advantages of these novel compounds includes: detecting β-D-ribofuranosidase activity with high sensitivity and low substrate concentrations and use with other enzyme indicators in situations where a plurality of enzyme activities is to be visualized simultaneously e.g. for identifying bacteria growth on solid growth media. The synthesis and use of 5-bromo-4-chloro-3-indolyl-β-D-ribofuranoside is exemplified.
本发明提供了新型的色团酶底物,即
吲哚基β-
D-核糖苷。同时提供了一种生产这些底物的方法,并给出了检测β-
D-核糖苷酶活性的方法。这些新化合物的优点包括:高灵敏度和低底物浓度下检测β-
D-核糖苷酶活性,并可与其他酶指示剂一起使用,用于同时可视化多种酶活性的情况,例如用于识别固体
培养基上的细菌生长。其中以5-
溴-4-
氯-3-
吲哚基-β-
D-核糖苷的合成和使用为例。