2-Amino-4-hydroxypyrrolo[2,3-d]pyrimidine, 2-Amino-3,7-dihydro-4H-pyrrolo<2,3-d>pyrimidin-4-on, 7-DEAZAGUANINE; 2-amino-3,4-dihydro-4-oxo-7H-pyrrolo[2,3-d]pyrimidine; 2-AMINO-4-HYDROXY-7H-PYRROLO[2,3-DPYRIMIDINE]; deazaguanine; 2-AMINO-3,7-DIHYDRO-PYRROLO[2,3-D]PYRIMIDIN-4-ONE; 2-Amino-3,7-dihydro-4H-pyrrolo-<2-amino-3H-pyrrolo[2,3-d]pyrimidin-4(7H)-one; 2-AMINO-4-HYDROXYPYRROLO-[2,3-D]PYRIMIDINE; 2-aMino-3H,4H,7H-pyrrolo[2,3-d]pyriMidin-4-one;