US3666763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-phenyl isoquinolines and process for preparing same
Assignee: F Hoffmann La Roche AG
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Filing: 1970-01-06
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Granted: 1972-05-30
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Expires: 1990-01-06
Abstract
Abstract Substituted 4-phenylisoquinolines prepared from the correspondingly substituted 4-phenyl-4-isoquinolinols are described. The end products are useful as antidepressants and hypotensive agents.
Inventors
- 👤 Guenter Grethe
- 👤 Milan Radoje Uskokovic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:35
CPC Classifications
C; C07; C07D; C07D217/00; C07D217/02; C07D217/04; C07D217/10; C07D217/22; C07D217/24
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
1 words
1,2,3,4-tetrahydro-7-methoxy-1,2-dimethyl-4-phenylisoquinoline.
Claim 2
Dependent Claim
1 words
1,2,3,4-tetrahydro-7-methoxy-2-methyl-4-(4-tolyl)-isoquinoline.
Claim 3
Dependent Claim
1 words
1,2,3,4-tetrahydro-7-methoxy-2-methyl-4-phenylisoquinoline.
Claim 4
Dependent Claim
1 words
1,2,3,4-tetrahydro-7-methoxy-2-methyl-4(S)-phenylisoquinoline.
Claim 5
Dependent Claim
1 words
1,2,3,4-tetrahydro-7-methoxy-2-methyl-4(R)-phenylisoquinoline.
Claim 6
Dependent Claim
1 words
1,2,3,4-tetrahydro-7-methoxy-4(S)-phenylisoquinoline.
Claim 7
Dependent Claim
1 words
1,2,3,4-tetrahydro-7-methoxy-4(R)-phenylisoquinoline.
Claim 8
Dependent Claim
10 words
A process for the preparation of compounds of the formula
Claim 9
Dependent Claim
16 words
The process of claim 9 wherein said catalytic hydrogenating agent is palladium (10 percent) on carbon.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |