Pyrrolo(3,2-e)pyrazolo(1,5-a)pyrimidine derivative and medicine

Details Pyrrolo(3,2-e)pyrazolo(1,5-a)pyrimidine derivative and medicine Pyrrolo(3,2-e)pyrazolo(1,5-a)pyrimidine derivative and medicine

1989-10-03

1991-02-12

Shen, Cecilia

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

5142332, 544115, 544251, A61K 31505, C07D40114

Patent

active

049924427

ABSTRACT:
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.

REFERENCES:
Ernst Tenor et al, Chem. Abst. 67-90830f (1967).

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