8-benzyloxy-7,8-didemethyl-5-deazariboflavin
5-phenylazo-6-D-ribitylaminopyrimidine-2,4(1H,3H)-dione
6-benzyl-7-methyl-8-D-ribitylpyrido<2,3-d>pyrimidine-2,4(3H,8H)-dione
5-amino-6-(D-ribitylamino)uracil
6-benzyl-8-D-ribitylpteridine-2,4,7(1H,3H,8H)-trione