5,6,7,8-tetrafluoro-3-methylisoxazolo[5,4-b]quinoline InChI=1/C11H4F4N2O/c1-3-4-2-5-6(12)7(13)8(14)9(15)10(5)16-11(4)18-17-3/h2H,1H isoxazolo[5,4-b]quinoline, 5,6,7,8-tetrafluoro-3-methyl-