US3946036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6,11-Dihydro-11-oxo-dibenzo[b,e]thiepine-2-acetic acids
Assignee: Sandoz AG
•
Filing: 1974-09-09
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Granted: 1976-03-23
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Expires: 1994-09-09
Abstract
Abstract The present invention provides compounds of formula I, ##SPC1## wherein R 1 is hydrogen, fluorine, chlorine, bromine, hydroxyl, lower alkyl, lower alkoxy, amino or lower acylamino, and R 2 is hydrogen or lower alkyl, Useful as antiphlogistic and anti-arthritic agents.
Inventors
- 👤 Fulvio Gadient
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:17
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/38; C; C07; C07C; C07C323/00; C07D; C07D337/00; C07D337/02; C07D337/06; C07D337/10; C07D337/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
30 words
A compound of the formula: ##SPC23## wherein R 1 is hydroxyl, lower alkoxy, amino or acetamino, and R 2 is hydrogen or lower alkyl, or a pharmaceutically acceptable salt thereof.
Claim 2
Dependent Claim
30 words
A compound of the formula: ##SPC23## wherein R 1 is hydroxyl, lower alkoxy, amino or acetamino, and R 2 is hydrogen or lower alkyl, or a pharmaceutically acceptable salt thereof.
Claim 3
Dependent Claim
10 words
A compound of claim 1 wherein R 1 is amino.
Claim 4
Dependent Claim
9 words
The compound of claim 1 which is 9-acetylamino-6,11-dihydro-11-oxo-dibenzo[b,e]thiepine-2-acetic acid.
Claim 5
Dependent Claim
9 words
The compound of claim 1 which is 9-amino-6,11-dihydro-11-oxo-dibenzo[b,e]thiepine-2-acetic acid.
Claim 6
Dependent Claim
9 words
The compound of claim 1 which is 6,11-dihydro-9-hydroxy-11-oxo-dibenzo[b,e]thiepine-2-acetic acid.
Claim 7
Dependent Claim
9 words
The compound of claim 1 which is 6,11-dihydro-9-methoxy-11-oxo-dibenzo[b,e]thiepine-2-acetic acid.
References Cited (Backward Citations)
US3725409A
Cited
JPS47425U
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |