“…have been in the market or are currently in clinical trials for various cancer treatments. Various chemical entities of quinazolines reported to have pharmacological effects includes antitubercular, [ 12,13 ] antibacterial, [ 14 ] antimicrobial, [ 15 ] anti‐inflammatory, [ 16 ] Antitumor [ 17 ] and CNS depressant [ 16 ] antifungal, [ 18,19 ] antimalarial, [ 20 ] antihypertensive, [ 21 ] diuretic, [ 22,23 ] inhibition of derived growth factor receptor phosphorylation, [ 24 ] antagonism of ghrelin receptor, [ 25 ] anticonvulsant, [ 26 ] COX‐2 inhibitory activities, analgesic and anti‐inflammatory. [ 27,28 ] It has been claimed that substituting different functional groups, atoms, or heterocyclic rings at the C‐2 or C‐3 location of the quinazolinone nucleus can increase the biological activity.…”