Hadfield J A, Pavlidis V H, McGown A T, Whitworth C, Perry P J, Fox B W
CRC Department of Experimental Chemotherapy, Paterson Institute for Cancer Research, Christie Hospital, Manchester, UK.
Anticancer Drugs. 1994 Oct;5(5):533-8. doi: 10.1097/00001813-199410000-00004.
Eight benzoxazin-4-ones related in structure to NSC 341964 (1) have been tested for cytotoxicity in two different cell systems. Two of the benzoxazin-4-ones (3 and 10) showed good cytotoxicity (ID50 = 9.9 and 8.9 microM) in P388 cells. The nitrobenzoxazin-4-one (10) caused a significant alteration in cell cycle distribution when administered to P388 cells and was an inhibitor of porcine pancreatic elastase. Structure-activity relationships are discussed.