US3726868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenyl and substituted phenylsulfonylallyl amines and substituted amines
Assignee: Sandoz AG
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Filing: 1971-09-16
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Granted: 1973-04-10
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Expires: 1991-09-16
Abstract
Abstract PHENYL AND SUBSTITUTED PHENYLSULFONYLALLYL AMINES AND SUBSTITUTED AMINES, E.G., 1-(3-PHENYLSULFONYLALLYL$-PYRROLIDINE HYDROCHLORIDE, ARE PREPARED BY TREATING A PHENYL OR SUBSTITUTED PHENYLSULFONYL-2-PROPEN-1-OL WITH AN AMINE OR SUBSTITUTED AMINE, TREATING THE RESULTING INTERMEDIATE WITH SOCL2 AND THEN WITH SODIUM CARBONATE AND ALLOWING THE RESULTING INTERMEDIATE TO REARRANGE TO THE FINAL PRODUCT. THE COMPOUNDS ARE USEFUL AS ANTI-INFLAMMATORY AGENTS.
Inventors
- 👤 R Manning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:45
CPC Classifications
C; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/08; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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 |