Imidazoquinazolines having pharmaceutical activity

Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...

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544247, 544250, A61K 31505, C07D48704

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active

043905404

ABSTRACT:
Imidazoquinazolines of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are hydrogen, halogen, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy or C.sub.2-5 -alkoxyalkyl; or two of R.sup.1, R.sup.2 and R.sup.3 on adjacent carbon atoms taken together are methylenedioxy or ethylenedioxy; and R.sup.4 and R.sup.5 are hydrogen or C.sub.1-4 -alkyl,
and their tautomers, as well as their physiologically compatible acid addition salts, are described.
The compounds of formula I inhibit the aggregation of the blood platelets, as well as gastric acid secretion, and have activity on the circulatory system.

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Coppola, et al., J. Org. Chem. vol. 41, No. 5, pp. 825-831 (1976).

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