Patent US4235897A successfully refreshed from Google Patents.
US4235897A
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Benzodiazepine derivatives and pharmaceutical compositions thereof
Assignee: Sanofi SA
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Filing: 1979-02-21
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Granted: 1980-11-25
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Expires: 1999-02-21
Abstract
Abstract The invention relates to benzodiazepine compounds of the formula: <IMAGE> wherein R5 is C1-C4 alkyl, R3 is C1-C4 alkyl, and R4 is selected from Cl and F, and medicaments containing such benzodizepine compounds.
Inventors
- 👤 Henri Demarne
- 👤 Andre Hallot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:40
CPC Classifications
C; C07; C07D; C07D243/00; C07D243/06; C07D243/10; C07D243/14; C07D243/16; C07D243/18; C07D243/24; A; A61; A61P; A61P21/00; A61P21/02; A61P25/00; A61P25/08; A61P25/20; A61P25/26
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
33 words
A benzodiazepine compound of the formula: ##STR7## wherein: R 5 is C 1 --C 4 alkyl; R 3 is C 1 --C 4 alkyl; and R 4 is selected from Cl and F.
Claim 2
Dependent Claim
33 words
A benzodiazepine compound of the formula: ##STR7## wherein: R 5 is C 1 --C 4 alkyl; R 3 is C 1 --C 4 alkyl; and R 4 is selected from Cl and F.
Claim 3
Dependent Claim
54 words
A pharmaceutical composition useful for the treatment of neuropsychic disturbances, characterized in that it contains a compound as defined in claim 1 as active ingredient in association with a pharmaceutically acceptable carrier, and is administered in such a manner that the patient receives from 2 to 100 mg per day of the active ingredient.
Claim 4
Dependent Claim
28 words
A pharmaceutical composition useful for the treatment of anxiety, comprising an effective amount of a compound as defined in claim 1 in association with a pharmaceutically acceptable carrier.
Claim 5
Dependent Claim
22 words
A benzodiazepine compound as defined in claim 1, wherein R 5 is methyl; R 3 is ethyl; and R 4 is chloro.
Claim 6
Dependent Claim
22 words
A benzodiazepine compound as defined in claim 1, wherein R 5 is methyl; R 3 is ethyl; and R 4 is fluoro.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-25 | 1984-05-26 | 1984-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-25 | 1988-05-26 | 1988-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-25 | 1992-05-26 | 1992-11-25 | $7700.00 | Window Closed / Lapsed |