Pyrimido[4,5-d]pyrimidine derivatives for use as bronchodilators

Details Pyrimido[4,5-d]pyrimidine derivatives for use as bronchodilators Pyrimido[4,5-d]pyrimidine derivatives for use as bronchodilators

1991-03-13

1992-11-10

Daus, Donald G.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

5142342, 514253, 514256, 544118, 544256, 540600, A61K 31505, C07D48702

Patent

active

051623161

ABSTRACT:
This invention relates to pyrimidopyrimidine derivatives which have bronchodilator and anti-allergic activities. A compound of the invention is 7-cyclopropylamino-4-oxo-2-(2-propoxyphenyl)-3,4-dihydropyrimido[4,5-d] pyrimidine.

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Weinstock et al., J. Med. Chem., 11, 573 (1968).
Davis et al. J. Cyclic Nucleotide Res. 5, 65-74 (1979).
Gupta et al., J. Heterocycl. Chem., 12, 1311 (1975).

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