Quinazolinone

Quinazolinone is a heterocyclic chemical compound. There are two structural isomers, 2-quinazolinone and 4-quinazolinone, with the 4-isomer being the more common.

Derivatives
Quinazolinones are also a class of drugs which function as hypnotic/sedatives that contain a 4-quinazolinone core. Their use has also been proposed in the treatment of cancer. Examples include afloqualone, cloroqualone, and diproqualone.

Alkaloids containing the quinazolinone core include evodiamine, febrifugine, and halofuginone.