Pyrazolo[4,3-d]

1-(7-amino-1-methyl-1H-pyrazolo[4,3-d]pyrimidin-3-yl)-1,4-anhydropentitol

1-Butanol,3-methyl-2-[(1,3,5-trimethyl-1H-pyrazolo[4,3-d]pyrimidin-7-yl)amino]-,(S)-

1-ethyl-4h-pyrazolo[4,3-d]pyrimidin-7-one

1-methyl-5-(2-propoxyphenyl)-3-propyl-4h-pyrazolo[4,3-d]pyrimidin-7-one

1-methyl-5-(5-nitro-2-propoxyphenyl)-3-propyl-4h-pyrazolo[4,3-d]pyrimidin-7-one

1-methyl-5-[2-(4-methylpiperazin-1-yl)-5-(4-methylpiperazin-1-yl)sulfonylthiophen-3-yl]-3-propyl-4h-pyrazolo[4,3-d]pyrimidin-7-one

1-methyl-5-[5-(4-methylpiperazin-1-yl)sulfonylthiophen-3-yl]-3-propyl-4h-pyrazolo[4,3-d]pyrimidin-7-one

1-methyl-6-[(phenylsulfonyl)oxy]-1H-pyrazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione

1-phenyl-6-[(phenylsulfonyl)oxy]-1H-pyrazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione

1-PHENYL-6-[(PHENYLSULFONYL)OXY]-1H-PYRAZOLO[4,3-D]PYRIMIDINE-5,7(4H,6H)-DIONE

1-Piperazinecarboxylic acid,4-[[3-(4,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-, ethyl ester

1-Piperidinecarboxylic acid,4-[[3-(4-cyano-2-fluorophenyl)-1-methyl-1H-pyrazolo[4,3-d]pyrimidin-7-yl]oxy]-, 1-methylethyl ester