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Last Updated: August 11, 2022

Claims for Patent: RE38551


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Summary for Patent: RE38551
Title: Anticonvulsant enantiomeric amino acid derivatives
Abstract:The present invention is directed to a compound in the R configuration about the asymmetric carbon in the following formula: ##STR1## pharmaceutical compositions containing same and the use thereof in treating CNS disorders in animals.
Inventor(s): Kohn; Harold (Chapel Hill, NC)
Assignee: Research Corporation Technologies, Inc. (Tucson, AZ)
Application Number:10/058,634
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent RE38551
Patent Claims: 1. A compound in the R configuration having the formula: ##STR11##

wherein Ar is phenyl which is unsubstituted or substituted with at least one halo group; Q is lower alkoxy, and Q.sub.1 is methyl.

2. The compound according to claim 1 which is substantially enantiopure.

3. The compound according to claim 1 wherein Q is lower alkoxy containing 1-3 carbon atoms.

4. The compound according to claim 3 wherein Q is methoxy.

5. The compound according to claim 1 wherein Ar is unsubstituted phenyl.

6. The compound according to claim 1 wherein halo is fluoro.

7. The compound according to claim 1 wherein Q is alkoxy containing 1-3 carbon atoms and Ar is unsubstituted phenyl.

8. The compound according to claim 1 which is (R)-N-Benzyl 2-Acetamido-3-methoxypropionamide.

9. The compound according to claim 8 which contains at least 90% (w/w) R stereoisomer.

10. A therapeutic composition comprising an anticonvulsant effective amount of a compound according to any one of claims 1-9 and a pharmaceutical carrier therefor.

11. A method of treating central nervous system disorders in an animal comprising administering to said animal in need thereof an anticonvulsant effective amount of a compound according to any one of claims 1-9.

12. The method according to claim 11 wherein the animal is a mammal.

13. The method according to claim 12 wherein the mammal is a human.

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