6-substituted pyrazolo (3,4-d)pyrimidin-4-ones and compositions and methods of use thereof
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United States of America Patent
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Aug 12, 1997
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N/A
app pub date -
Mar 10, 1995
filing date -
Mar 10, 1995
priority date (Note) -
Expired
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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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