(2,4-dioxo-1H-benzo[g]pteridin-3-yl) benzenesulfonate

二甲胺

(1,3-dioxopyrrolo[3,4-b]quinoxalin-2-yl) benzenesulfonate

furo[3,4-b]quinoxaline-1,3-dione

2-hydroxypyrrolo[3,4-b]quinoxaline-1,3-dione