Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1988-07-01
1991-07-16
Rivers, Diana
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
544267, 544273, A61K 3152, C07D47306
Patent
active
050325930
ABSTRACT:
1,3-Alkyl substituted-8-phenylxanthines in which the straight chain alkyl substituents are different and pharmaceutically acceptable salts of such compounds are disclosed. Preferred compounds have 1-n-propyl-3-methyl and 1-methyl-3-n-propyl substituents. The compounds are potent bronchodilators.
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Erickson Ronald H.
Rzeszotarski Waclaw J.
Gillis Theresa M.
Marion Merrell Dow Inc.
Rivers Diana
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