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US3726900A
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US
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Dibenzo(a-d)cycloheptadi(or tri)ene-5:2'-dioxalanes(i,3')
Assignee: Synthelabo SA
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Filing: 1971-04-12
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Granted: 1973-04-10
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Expires: 1991-04-12
Abstract
Abstract A COMPOUND OF THE FORMULA Z<(-(1,2-PHENYLENE)-C<(-O-CH2-C(-CH2-N(-R)(-R''))-O-)-(1,2- PHENYLENE)-) IN WHICH Z IS -CH2-CH2- OR -CH=CH-, AND R AND R'' EACH IS AN ALKYL 1-3C OR -N(-R)-R'' IS PYRROLIDINO, PIPERIDINO, HEXAMETHYLENEIMINO OR MORPHOLINO. THE COMPOUNDS ARE PREPARED BY CONDENSING, IN THE PRESENCE OF STANNIC CHLORIDE IN CHLOROFORM OR CARBON TETRACHLORIDE, AN EPIBROMOHYDRIN WITH DIBENZO (A-D) CYCLOHEPTADI (OR TRI) ENONE. THIS INTERMEDIATE IS THEN CONDENSED, IN BENZENE WITH A SECONDARY AMINE TO OBTAIN THE COMPOUND. THE COMPOUNDS POSSESSES ANALGESIC, SEDATIVE, ANTHISTAMINIC, ANTI-SEROTONENIC, ANTI-INFLAMMATORY, ANTICONVULSANT AND ANTI-DEPRESSANT PROPERTIES.
Inventors
- 👤 J Thomas
- 👤 G Huguet
- 👤 G Raynaud
- 👤 C Gouret
- 👤 C Fauran
- 👤 J Eberle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:26
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/72; C07D317/44; C07D317/70
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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |