1 9KT 1,4-dimethylquinoxaline-2,3-dione 1.000 2 5QX 1-methyl-3,4-dihydroquinoxalin-2-one 0.857 3 A1CFZ (4as,8ar)-octahydroquinoxalin-2(1h)-one 0.786 4 LI6 3,4-dihydroxy-1-methylquinolin-2(1h)-one 0.750 5 UFO 1-(1,4-dimethyl-1,2,3,4-tetrahydroquinoxalin-6-yl)methanamine 0.750 6 12Q 1-methylquinolin-2(1h)-one 0.733 7 4YO 6-bromo-3,4-dihydroquinoxalin-2(1h)-one 0.733 8 5GU 7-bromo-3,4-dihydroquinoxalin-2(1h)-one 0.733 9 5QY (3~{S})-3-methyl-3,4-dihydro-1~{H}-quinoxalin-2-one 0.733 10 72V 1-methylindole-2,3-dione 0.733 11 G3E 3-hydroxyquinolin-2(1h)-one 0.733 12 NY0 1-(3-oxidanyl-2~{H}-quinoxalin-1-yl)propan-1-one 0.706 13 NYI 4-prop-2-enoyl-1,3-dihydroquinoxalin-2-one 0.706