1	53L	(2r,4s,4as,5s)-6'-hydroxy-2,4-dimethyl-8-nitro-1,2,4,4a-tetrahydro-2'H,6h-spiro[1,4-oxazino[4,3-a]quinoline-5,5'-pyrimidine]-2',4'(3'H)-dione	1.000
2	50M	(2r,4s,4as,5r)-6'-hydroxy-2,4-dimethyl-8-nitro-1,2,4,4a-tetrahydro-2'H,6h-spiro[1,4-oxazino[4,3-a]quinoline-5,5'-pyrimidine]-2',4'(3'H)-dione	1.000
3	53M	(2r,4s,4as)-4',6'-dihydroxy-2,4-dimethyl-8-nitro-1,2,4,4a-tetrahydro-2'H,6h-spiro[1,4-oxazino[4,3-a]quinoline-5,5'-pyrimidin]-2'-one	1.000
4	54Q	(2r,4s,4as)-2,4-dimethyl-8-nitro-1,2,4,4a-tetrahydro-2'H,6h-spiro[1,4-oxazino[4,3-a]quinoline-5,5'-pyrimidine]-2',4',6'(1'H,3'H)-trione	1.000