Author(s): Shobha RS, Raju B
Alkaloids with a quinazoline ring system are known as natural compounds having a wide spectrum of biological effects. About one fifth of them are biological active. Moreover, many synthetic derivatives of quinazolines are pharmacologically interesting compounds as well. This type of compounds shows for example antinflammatory, antihypertonic, CNS, antibacterial, analgetic, spasmolytic activity or in the some cases may be characterized as antagonists of adenosine.