Piperazino quinazoline bronchodilators

Details Piperazino quinazoline bronchodilators Piperazino quinazoline bronchodilators

1975-05-29

1976-06-29

Drezin, Norman A.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Bacterium or component thereof or substance produced by said...

A61K 31505

Patent

active

039669360

ABSTRACT:
A series of novel 4-piperazino-6,7-dialkoxyquinazolines and 1-piperazino-6,7-dialkoxyisoquinolines have been prepared, including their acid addition salts. These compounds are useful in therapy as bronchodilators and as smooth muscle relaxants. Methods for their preparation from known compounds are provided.

REFERENCES:
patent: 2593798 (1952-04-01), Robinson
patent: 3723434 (1973-03-01), Cronin

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