Chromogenic merocyanine enzyme substrate compounds of the general formula:
where Y is an enzymatically-cleavable group such as a radical of a sugar, carboxylic acid, amino acid, peptide, phosphoric acid, or sulfuric acid; A and B represent residues that complete 5- or 6-membered ring systems; R¹ is substituted or unsubstituted alkyl; R² and R³, independently, are hydrogen or lower alkyl; m, n, and p, which can be different, are intergers from 0 through 3 provided that m + n + p must be at least 2; and X is an appropriate counterion (anion).
通式如下的变色梅洛苷酶底物化合物:
其中 Y 是可酶解的基团,如糖、羧酸、氨基酸、肽、磷酸或硫酸的基团;A 和 B 代表完成 5 或 6 元环系统的残基;R¹ 是取代或未取代的烷基;R² 和 R³ 分别是氢或低级烷基;m、n 和 p 可以是不同的,它们是 0 到 3 的互数,但 m + n + p 必须至少为 2;X 是适当的反离子(阴离子)。
The ruthenium-catalyzed <i>meta</i>-selective C–H nitration of various azole ring-substituted arenes