6-substituted pyrazolo (3,4-d)pyrimidin-4-ones and compositions and
申请人:Sanofi Winthrop, Inc.
公开号:US05656629A1
公开(公告)日:1997-08-12
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.