Novel heterocyclic compounds which generate chemiluminescence on reaction with a phosphatase enzyme are provided as well as a process for their preparation and intermediates useful therein. The compounds comprise a nitrogen, oxygen or sulfur-containing heterocyclic ring system bearing an exocyclic carbon-carbon double bond. The double bond is further substituted at the distal carbon with a phosphate group and an oxygen or sulfur atom-containing group.
Novel compositions further comprising a cationic aromatic compound (CAC) in addition to the heterocyclic phosphate compound are provided. The addition of the CAC in the composition greatly increases the production of chemiluminescence and provides improved detection sensitivity. Compositions further comprising an anionic surfactant and a non-ionic surfactant provide additional improvements in detection sensitivity. The novel chemiluminescent compounds and compositions are useful in methods for producing light and in assays for phosphatase enzymes and enzyme inhibitors and in assays employing enzyme-labeled specific binding pairs.
本发明提供了产生
化学发光的新型
杂环化合物,其与
磷酸酶酶反应时会产生
化学发光,以及用于其制备和有用中间体的方法。该化合物包括带有外向碳-碳双键的氮、氧或
硫含杂环环系统。双键在远端碳上进一步取代为一个
磷酸酯基团和一个含氧或
硫原子的基团。此外,本发明还提供了进一步包括阳离子芳香化合物(
CAC)的新型组合物,除了杂环
磷酸酯化合物外。在组合物中加入
CAC可以大大增加
化学发光的产生,并提供改进的检测灵敏度。进一步包括阴离子表面活性剂和非离子表面活性剂的组合物提供了额外的检测灵敏度改进。新型
化学发光化合物和组合物在产生光的方法、
磷酸酶酶和酶
抑制剂的检测方法以及使用酶标记的特异性结合对的检测方法中均有用途。