8-azaxanthine derivatives, and pharmaceutical compositions conta

Details 8-azaxanthine derivatives, and pharmaceutical compositions conta 8-azaxanthine derivatives, and pharmaceutical compositions conta

1988-08-25

1990-06-05

Daus, Donald G.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

514258, 544118, 544254, A61K 31505, C07D47102

Patent

active

049314378

ABSTRACT:
The present invention relates to 8-azaxanthines derivatives having antiasthmatic activity and the general formula: ##STR1## wherein: R.sub.1 is a hydrogen or a lower alkyl of from one to six carbon atoms or an arylalkyl group;

REFERENCES:
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patent: 4027025 (1977-05-01), Schaeffer
patent: 4146500 (1979-03-01), Fletcher
patent: 4543255 (1985-09-01), Shealy
patent: 4714701 (1987-12-01), Beauchamp
patent: 4840949 (1989-06-01), Korbonits et al.
Bariana Jour. Med. Chem. 14, 543-45 (1971).
Broughton et al., Jour. Med. Chem. 18 1117-22 (1975).
Coulson et al., Eur. Jour. Med. Chem. 9 pp. 313-317 (1974).

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