5-deazariboflavin

5-Carbariboflavin

1-Deoxy-1-(3,4-dihydro-7,8-dimethyl-2,4-dioxopyrimido[4,5-b]quinolin-10(2H)-yl)-D-ribitol

7,8-Dimethyl-10-(1-deoxy-D-ribitol-1-yl)-2,3,4,10-tetrahydropyrimido[4,5-b]quinoline-2,4-dione