Indazoles are a class of organic heterocyclic compounds, also known as 1,2-diazaindene and benzopyrazole. Indazole is a good bioisomer of phenol, which is more lipophilic than phenol and less prone to phase I and II metabolism. Indazole derivatives have a wide range of biological activities, and it has been confirmed that indazole compounds have anti-tumor, analgesic, anti-inflammatory and other drug activities. Anticancer is the most important application field of indazole drugs. Renal cell carcinoma, solid tumor, nausea and vomiting caused by chemotherapy and leukemia are the main indications of this structural backbone drug.
Triazole refers to a heterocyclic compound with the molecular formula C2H3N3, which has a five-membered ring consisting of two carbon atoms and three nitrogen atoms. Neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease already affect many people around the world, and these numbers are increasing rapidly. Treatment for these disorders is often aimed at relieving symptoms and has no cure. Research on new molecules is underway, and heterocyclic compounds have important pharmacological implications. Triazoles and tetrazoles are emerging as new molecules in this field.