US3562331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amino-lower-alkoxy-dibenzo(a,d)cycloheptene-5-carbinols
Assignee: STWB Inc
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Filing: 1967-04-24
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Granted: 1971-02-09
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Expires: 1987-04-24
Abstract
Abstract DIBENZO(A,D)CYCLOHEPTEN-5-ONES AND 10,11-DIHYDRO DERIVATIVES THEREOF SUBSTITUTED ON ONE OF THE BENZENE RINGS BY AN AMINO-LOWER ALKOXY GROUP ARE PREPARED BY REACTING THE CORRESPONDING HYDROXYDIBENZO(A,D)CYCLOHEPTEN5-ONES WITH AN AMINO-LOWER-ALKYL HALIDE. THE 5-CARBONYL GROUP IS SUBSEQUENTLY CONVERTED BY REDUCTION, GRIGNARD AND DEHYDRATION REACTIONS TO THE GROUPS CH2, CH(OH), C(LOWER-ALKYL)(OH), C(PHENYL-LOWER-ALKYL)(OH), C=(LOWER-ALKYLIDENE), C=(PHENYL-LOWER-ALKYLIDENE), CH(LOWER-ALKYL) OR CH(PHENYL-LOWER-ALKYL). THE COMPOUNDS ARE USEFUL AS ANTIDEPRESSANT AGENTS.
Inventors
- 👤 John W Schulenberg
- 👤 Sydney Archer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:59
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/77; C07D307/87; C07D307/88; C07C; C07C65/00; C07C65/21; C07C65/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |