US3749731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-oxo-n-(2-thiazolyl)-3-indoline-carboxamide
Assignee: Warner Lambert Co LLC
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Filing: 1971-07-08
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Granted: 1973-07-31
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Expires: 1991-07-08
Abstract
Abstract 2-OXO-N-(2-THIAZOLYL)-3 - INDOLINECARBOXAMIDES HAVING THE FOLLOWING STRUCTURAL FORMULA ARE DISCUSSED: 1-R1,2-(O=),3-((R3-THIAZOL-2-YL)-NH-CO-),R2-2,3-DIHYDRO- INDOLE WHEREIN R1 IS HYDROGEN, ALKYL, ARYL, OR ARALKYL; R2 IS HYDROGEN, ALKYL, ARALKYL, HALOGEN, ALKOXY, CYANO, CARBUALKOXY, NITRO, TRIFLUOROMETHYL, AND THE LIKE; R3 IS HYDROGEN OR ALKYL. THEY ARE PREPARED IN ACCORDANCE WITH THE FOLLOWING REACTION SCHEMES: 2-(O=),1-R1,R2-2,3-DIHYDROINDOLE -> 1-R1,2-(O=),3-(R4- OOC-),R2-2,3-DIHYDROINDOLE AND 2-NH2,R3-THIAZOLE -> INDOLE AND R4-OH THESE COMPOUNDS ARE USEFUL AS ANTIPYRETIC, ANALGESIC, AND ANTI-INFLAMMATORY AGENTS. 1-R1,2-(O=),3-((R3-THIAZOL-2-YL)-NH-CO-),R2-2,3-DIHYDRO-
Inventors
- 👤 J Shavel
- 👤 H Zinnes
- 👤 M Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:09
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/30; C07D209/42
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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |