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Last Updated: March 29, 2024

Claims for Patent: 5,602,176


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Summary for Patent: 5,602,176
Title: Phenyl carbamate
Abstract:The (S)-N-ethyl-3-[(1-dimethylamino)ethyl]-N-methyl-phenylncarbamate in free base or acid addition salt form is useful as pharmaceutical, particularly for systemic transdermal administration.
Inventor(s): Enz; Albert (Basel, CH)
Assignee: Sandoz Ltd. (Basel, CH)
Application Number:08/466,502
Patent Claims: 1. The (S)-[N-ethyl-3-[(1-dimethylamino)ethyl]-N-methyl-phenyl-carbamate] enantiomer of formula I substantially free of its (R) isomer ##STR3## in free base or acid addition form.

2. The compound of claim 1 which is the hydrogen tartrate salt of (S)-N-ethyl-3-[(1-dimethylamino)ethyl]-N-methyl-phenylcarbamate.

3. A pharmaceutical composition which comprises a compound of claim 1 in free base or pharmaceutically acceptable acid addition salt form, in association with a pharmaceutical carrier or diluent.

4. A method of treating senile dementia, which comprises administering a therapeutically effective amount of a compound of claim 1 in free base or pharmacologically acceptable acid addition salt form to a subject in need of such treatment.

5. A method of treating Alzheimer's disease, which comprises administering a therapeutically effective amount of a compound of claim 1 in free base or pharmacologically acceptable acid addition salt form to a subject in need of such treatment.

6. A method of treating Huntington's chorea, tardive dyskinesias, hyperkinesia, mania, acute confusion disorders, Down's syndrome or Friedrich's ataxia, which comprises administering a therapeutically effective amount of a compound of claim 1 in free base or pharmacologically acceptable acid addition salt form to a subject in need of such treatment.

7. A method of systemically administering a compound of claim 1 in free base or pharmaceutically acceptable acid addition salt form, which comprises administering the active agent transdermally through the skin.

8. A systemic transdermal pharmaceutical composition according to claim 3 comprising a therapeutically effective amount of (S)-N-ethyl-3-[(1-dimethyl-amino)ethyl]-N-methyl-phenyl-carbamate in free base or pharmaceutically acceptable acid addition salt form, and a pharmaceutically acceptable carrier therefor suitable for systemic transdermal administration.

9. A systemic transdermal pharmaceutical composition according to claim 3 comprising a therapeutically effective amount of the hydrogen tartrate salt of (S)-N-ethyl-3-[(1-dimethyl-amino)ethyl]-N-methyl-phenyl-carbamate, and a pharmaceutically acceptable carrier therefor suitable for systemic transdermal administration.

10. A systemic transdermal pharmaceutical composition according to claim 8 in which the (S)-N-ethyl-3-[(1-dimethyl-amino)ethyl]-N-methyl-phenyl-carbamate is in free base form.

11. A systemic transdermal pharmaceutical composition according to claim 8 in which the pharmaceutically acceptable carrier is a transdermal patch.

12. A method according to claim 7 in which the compound is in free base form.

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