for the following products
3,7-Dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one | 3H-Pyrrolo[2,3-d]pyrimidin-4(7H)-one | 4-Hydroxy-4H-pyrrolo[2,3-d]pyrimidine | 7-Deaza-6-hydroxy purine | 7-Deazahypoxanthine | 7H-pyrrolo[2,3-d]pyrimidin-4-ol and Pyrrolo(2,3-d)pyrimidin-4-ol
