1,2-Benzoisoxazole is an aromatic organic compound with the molecular formula C7H5NO containing a benzene-fused isoxazole ring structure. The compound itself has no general application; however, functionalized benzoxazoles and benzoisoxazoles have a variety of uses, including therapeutic drugs such as some antipsychotics (including risperidone, paliperidone, cape ketone and iloperidone) and the anticonvulsant azolamide.
The imidazothiazole, consisting of an imidazole ring fused with a thiazole ring, has been reported to have excellent immunostimulating and anti-inflammatory activities. Fused heterocyclic compounds are of great importance and are found in various types of synthetic and naturally occurring biologically important compounds. Imidazothiazoles and imidazopyridines possess a variety of applications such as dyes, pesticides, fungicides, antitumor, antiinflammatory, and analgesic activity.