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Last Updated: April 9, 2025

Claims for Patent: 6,818,787

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Summary for Patent: 6,818,787

Title:	Prodrugs of GABA analogs, compositions and uses thereof
Abstract:	The present invention provides prodrugs of GABA analogs, pharmaceutical compositions of prodrugs of GABA analogs and methods for making prodrugs of GABA analogs. The present invention also provides methods for using prodrugs of GABA analogs and methods for using pharmaceutical compositions of prodrugs of GABA analogs for treating or preventing common diseases and/or disorders.
Inventor(s):	Gallop; Mark A. (Los Altos, CA), Cundy; Kenneth C. (Redwood City, CA), Zhou; Cindy X. (Palo Alto, CA), Yao; Fenmei (Mountain View, CA), Xiang; Jia-Ning (Palo Alto, CA)
Assignee:	Xenoport, Inc. (Santa Clara, CA)
Application Number:	10/171,485
Patent Claims:	1. A compound of formula: ##STR62## or a pharmaceutically acceptable salt, hydrate or solvate thereof wherein: R.sup.7 and R.sup.14 are each hydrogen; R.sup.13 is selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl and sec-butyl; and R.sup.25 is selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, n-pentyl, isopentyl, sec-pentyl, neopentyl and 1,1-diethoxyethyl. 2. The compound of claim 1 wherein R.sup.13 is methyl. 3. The compound of claim 1, wherein R.sup.25 is methyl, ethyl, n-propyl or isopropyl. 4. The compound of claim 1, wherein R.sup.13 is methyl and R.sup.25 is methyl, ethyl, n-propyl or n-butyl. 5. The compound of claim 1, wherein R.sup.13 is ethyl and R.sup.25 is methyl, n-propyl or isopropyl. 6. The compound of claim 1, wherein R.sup.13 is n-propyl and R.sup.25 is methyl, ethyl, n-propyl, isopropyl or n-butyl. 7. The compound of claim 1, wherein R.sup.13 is isopropyl and R.sup.25 is methyl, ethyl, n-propyl, isopropyl, n-butyl or isobutyl. 8. The compound of claim 1, wherein R.sup.13 n-propyl and R.sup.25 is n-propyl. 9. The compound of claim 1, wherein R.sup.13 is methyl and R.sup.25 is ethyl. 10. The compound of claim 1, wherein R.sup.13 is methyl and R.sup.25 is isopropyl. 11. The compound of claim 1, wherein R.sup.13 is isopropyl and R.sup.25 is isopropyl. 12. The compound of claim 1, wherein R.sup.13 is isopropyl and R.sup.25 is 1,1-diethoxyethyl. 13. The compound of claim 1, wherein R.sup.13 is propyl and R.sup.25 is isopropyl. 14. The compound of claim 1, wherein R.sup.13 is propyl and R.sup.25 is ethyl.

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