336113-57-6Relevant articles and documents
Oxidative radical skeletal rearrangement induced by molecular oxygen: Synthesis of quinazolinones
Wang, Yi-Feng,Zhang, Feng-Lian,Chiba, Shunsuke
supporting information, p. 2842 - 2845 (2013/07/11)
Oxidative skeletal rearrangement of 5-aryl-4,5-dihydro-1,2,4-oxadiazoles into quinazolinones is induced by molecular oxygen (under a dry air atmosphere) that likely proceeds via transient iminyl radical species. Concise syntheses of biologically active qu
Fluorinated quinazolinones as potential radiotracers for imaging kinesin spindle protein expression
Holland, Jason P.,Jones, Michael W.,Cohrs, Susan,Schibli, Roger,Fischer, Eliane
supporting information, p. 496 - 507 (2013/03/13)
Anti-mitotic anti-cancer drugs offer a potential platform for developing new radiotracers for imaging proliferation markers associated with the mitosis-phase of the cell-cycle. One interesting target is kinesin spindle protein (KSP) - an ATP-dependent motor protein that plays a vital role in bipolar spindle formation. In this work we synthesised a range of new fluorinated-quinazolinone compounds based on the structure of the clinical candidate KSP inhibitor, ispinesib, and investigated their properties in vitro as potential anti-mitotic agents targeting KSP expression. Anti-proliferation (MTT and BrdU) assays combined with additional studies including fluorescence-assisted cell sorting (FACS) analysis of cell-cycle arrest confirmed the mechanism and potency of these biphenyl compounds in a range of human cancer cell lines. Additional studies using confocal fluorescence microscopy showed that these compounds induce M-phase arrest via monoaster spindle formation. Structural studies revealed that compound 20-(R) is the most potent fluorinated-quinazolinone inhibitor of KSP and represents a suitable lead candidate for further studies on designing 18F-radiolabelled agents for positron-emission tomography (PET).