Patent US3829434A successfully refreshed from Google Patents.
US3829434A
Expired / Lapsed
US
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Piperidinesulfonylurea derivatives
Assignee: Pfizer Inc
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Filing: 1972-11-10
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Granted: 1974-08-13
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Expires: 1992-11-10
Abstract
Abstract A SERIES OF NOVEL 1-PIPERIDINESULFINYLUREA COMPOUNDS DERIVED FROM A NITROGEN-CONTAINING MONOCARBOXYLIC ACID HAVE BEEN PREPARED BY REACTING AN APPROPRIATE SULFAMIDE WITH AN ORGANIC ISOCYANATE OR A TRISUBSTITUTED UREA EQUIVALENT THEREOF. THE SULFAMYLUREAS SO OBTAINED ARE USEFUL IN THERAPY AS ORAL HYPOGLYCEMIC AGENTS. TYPICAL MEMBERS INCLUDES THOSE COMPOUNDS DERIVED FROM 2-METHOXYNICOTINIC ACID, OF WHICH 1-(BICYCLO(2.2.1)HEPT-5-EN-2-YL-ENDOMETHYL) -3- (4-(2-(2-METHOXYNICOTINAMIDO)ETHYL)-1-PIPERIDINESULFONYL)-UREA IS A MOST PREFERRED EMBODIMENT.
Inventors
- 👤 G Evanega
- 👤 D Kuhla
- 👤 R Sarges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:23
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/79; C07D213/80; A; A61; A61P; A61P3/00; A61P3/08; C07C; C07C273/00; C07C273/18; C07C273/1809; C07C273/1836; C07C273/1845; C07D493/00; C07D493/02; C07D493/08; C07C2602/00; C07C2602/36; C07C2602/42
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) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |