7-bromo-4-chloro-5H-pyrrolo[3,2-d]pyrimidine 4-CHLORO-5H-PYRROLO[3,2-D] PYRIMIDINE 3,5-DIHYDRO-7-NITRO-4H-PYRROLO[3,2-D]PYRIMIDIN-4-ONE

PYRIDO[2,3-D]PYRIMIDIN-4(1H)-ONE YRIDO[4,3-D]PYRIMIDINE-6(5H)-CARBOXYLIC ACID, 2-AMINO-7,8-DIHYDRO-, 1,1-DIMETHYLETHYL ESTER PYRIDO[2,3-D]PYRIMIDINE-2,4(1H,3H)-DIONE Pyrrolo[1,2-a]pyrazine Pyrido[2,3-b]pyrazine 7-BROMO-1,5-DIHYDRO-4H-PYRROLO[3,2-D]PYRIMIDIN-4-ONE Forodesine 4H-Pyrrolo[3,2-d]pyrimidin-4-one, 2-amino-1,5-dihydro- (9CI) 8-METHOXYPYRIMIDINO[5,4-B]INDOL-4(3H)-ONE 1,5-DIHYDRO-4H-PYRROLO[3,2-D]PYRIMIDIN-4-ONE CI 972 4H-Pyrrolo[3,2-d]pyrimidin-4-one, 7-amino-1,5-dihydro- (9CI) Peldesine 5'-O-(4,4'-DIMETHOXYTRITYL)-N2-DIMETHYLAMINOMETHYLENE-7-DEAZA-2'-DEOXYGUANOSINE, 3'-[(2-CYANOETHYL)-(N,N-DIISOPROPYL)]PHOSPHORAMIDITE 9-deaza-9-(3-thienylmethyl)guanine ETHYL 4,5-DIHYDRO-4-OXO-1H-PYRROLO[3,2-D]PYRIMIDINE-7-CARBOXYLATE 3,5-DIHYDRO-7-NITRO-4H-PYRROLO[3,2-D]PYRIMIDIN-4-ONE 9-DEAZA-2'-DEOXYGUANOSINE (2-AMINO-7-(BETA-D-2-DEOXYRIBOFURANOSYL)PYRROLO[3,2-D]PYRIMIDIN-4-ONE)