Patent US3906006A successfully refreshed from Google Patents.
US3906006A
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Preparation of 2,3,4,5-tetrahydro-1H-3-benzazepines and 1,2,3,4,5,6-hexahydro-3-benzazocines
Assignee: F Hoffmann La Roche AG
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Filing: 1973-10-01
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Granted: 1975-09-16
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Expires: 1993-10-01
Abstract
Abstract A process for the preparation of heterocyclic compounds containing one nitrogen atom and novel 2,3,4,5-tetrahydro-1H-3benzazepines prepared by this process are disclosed. The resulting heterocyclic compounds, including the novel 2,3,4,5tetrahydro-1H-3-benzazepine derivatives, exhibit analgesic, appetite suppressant, and anti-edema activity.
Inventors
- 👤 Arnold Brossi
- 👤 Benjamin Pecherer
- 👤 Robert Sunbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:18
CPC Classifications
C; C07; C07D; C07D223/00; C07D223/14; C07D223/16; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C07D491/00; C07D491/02; C07D491/04; C07D491/056
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A PROCESS FOR THE PREPARATION OF COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
10 words
A PROCESS FOR THE PREPARATION OF COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
US2485600A
Cited
US2878266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |