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

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

C - Chemistry, Metallurgy

07

D

167/220, 260/242

C07D 487/14 (2006.01) A61K 31/505 (2006.01) A61K 31/535 (2006.01)

Patent

CA 1330079

ABSTRACT OF THE DISCLOSURE Pyrrolo[3,2-e]pyrazolo[1,5-a]pyrimidine derivatives are disclosed. The compounds are represented by the formula (I), (I) Image 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.

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