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US 4,981,857 AGranted
Purine Derivatives
AssigneeBurroughs Wellcome Co.
InventorsSusan M. Daluge, Harry J. Leighton
Life of this patent
Estimating the term…
Abstract
The present invention relates to certain novel 8-phenylxanthines substituted in the 3 or 4 position of the phenyl group by an alkenylene, alkenyleneoxy, alkynylene or alkynyleneoxy bearing a terminal acidic grouping, and to their use in human and veterinary therapy, particularly for conditions associated with the cell surface effects of adenosine.
Claims4
The compound
- (E)-4-(1,3-dibenzyl-1,2,3,6-tetrahydro-2,6-dioxo-9H-purin-8-yl) cinnamic acid.
A pharmaceutical composition comprising
- (E)-4-(1,3-dibenzyl-1,2,3,6-tetrahydro-2,6-dioxo-9H-purin-8-yl) cinnamic acid or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier therefore.
A tablet or capsule containing
- (E)-4-(1,3-dibenzyl-1,2,3,6-tetrahydro-2,6-dioxo-9H-purin-8-yl) cinnamic acid or a pharmaceutically acceptable salt thereof.
A pharmaceutically acceptable salt of the compound
- (E)-4-(1,3-dibenzyl-1,2,3,6-tetrahydro-2,6-dioxo-9H-purin-8-yl) cinnamic acid.
Dependencies are inferred from the claim text.