Pyrrolo[3,2-e]pyrazolo[1,5-a]pyrimidine derivatives and medicines comprising the same
申请人:POLA CHEMICAL INDUSTRIES INC., JAPAN
公开号:EP0369145A2
公开(公告)日:1990-05-23
Pyrrolo[3,2-e]pyrazolo[1,5-a]pyrimidine derivatives are disclosed. The compounds are represented by the formula (I),
wherein R₁ and R₂ individually represent a hydrogen atom, a linear or branched alkyl group which may have a substituent, a cycloalkyl or phenyl group which may have a substituent, or a heterocyclic group which may have a substituent, and R₃ is a hydrogen atom or a cyano group. The compounds have excellent circulatory disease curing activities as well as bronchodilation activities.
Pyrrolo(3,2-e)pyrazolo(1,5-a)pyrimidine derivative and medicine
申请人:Pola Chemical Industries Inc., Japan
公开号:US04992442A1
公开(公告)日:1991-02-12
Pyrrolo[3,2-e]pyrazolo[1,5-a]pyrimidine derivatives are disclosed. The compounds are represented by the formula (I), ##STR1## wherein R.sub.1 and R.sub.2 individually represent a hydrogen atom, a linear or branched alkyl group which may have a substituent, a cycloalkyl or phenyl group which may have a substituent, or a heterocyclic group which may have a substituent, and R.sub.3 is a hydrogen atom or a cyano group. The compounds have excellent circulatory disease curing activities as well as bronchodilation activities.