11-fluoro-2,4,8-trimethyl-2,4,4a,6-tetrahydro-1H,1'H-spiro(isoxazolo(4,5-g)(1,4)oxazino(4,3-a)quinoline-5,5'-pyrimidine)-2',4',6'(3'H)-trione
11-fluoro-2,4,8-trimethyl-2,4,4a,6-tetrahydro-1h,1'h-spiro(isoxazolo(4,5-g)(1,4)oxazino(4,3-a)quinoline-5,5'-pyrimidine)-2',4',6'(3'h)-trione