C00212  Adenosine
   C00008  ADP
   C00020  AMP
   C00002  ATP
   C04302  N-(5-Phospho-D-ribosyl)anthranilate
   C22192  Anthelmycin
   C01268  5-Amino-6-(5'-phosphoribosylamino)uracil
   C11265  8-Azaadenosine
   C00055  CMP
   C02961  Cytarabine
   C00063  CTP
   C00239  dCMP
   C01304  2,5-Diamino-6-(5-phospho-D-ribosylamino)pyrimidin-4(3H)-one
   C05923  2,5-Diaminopyrimidine nucleoside triphosphate
   C18910  2,5-Diamino-6-(5-phospho-D-ribitylamino)pyrimidin-4(3H)-one
   C15563  2-Amino-5-formylamino-6-(5-phospho-D-ribosylamino)pyrimidin-4(3H)-one
   C04640  2-(Formamido)-N1-(5'-phosphoribosyl)acetamidine
   C19700  4'-O-Demethylrebeccamycin
   C16635  5'-Deoxy-5-fluorocytidine
   C04422  N6-Alkylaminopurine-7-beta-D-glucoside
   C11104  Hymexazol N-glucoside
   C00294  Inosine
   C00104  IDP
   C00130  IMP
   C00081  ITP
   C04583  6-Hydroxyl-1,6-dihydropurine ribonucleoside
   C16616  6-Mercaptopurine ribonucleoside 5'-diphosphate
   C16617  6-Mercaptopurine ribonucleoside triphosphate
   C05841  Nicotinate D-ribonucleoside
   C15586  N-D-Ribosylpurine
   C20463  Purine deoxyribonucleoside
   C16745  Spongouridine
   C03838  5'-Phosphoribosylglycinamide
   C04437  1-(5-Phosphoribosyl)imidazole-4-acetate
   C16744  Spongothymidine
   C16443  trans-Zeatin-7-beta-D-glucoside
   C05513  Urate-3-ribonucleoside