6-substituted pyrazolo (3,4-d)pyrimidin-4-ones and compositions

Details 6-substituted pyrazolo (3,4-d)pyrimidin-4-ones and compositions 6-substituted pyrazolo (3,4-d)pyrimidin-4-ones and compositions

1995-03-10

1997-08-12

Grumbling, Matthew V.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

5142372, 514258, 544262, 544116, 544126, A61K 31505, C07D40302

Patent

active

056566298

ABSTRACT:
6-Substituted pyrazolo[3,4 -d]pyrimidin-4-one derivatives, pharmaceutical compositions containing them and methods for effecting c-GMP-phosphodiesterase inhibition and for treating heart failure and/or hypertension.

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patent: 5541187 (1996-07-01), Bacon et al.
Miyashita et al., Heterocycles, 1990, 31, 1309-1314.
Burch, 1968, Nitrofuryl Heterocycles VII, vol. 11, 79-83.

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