US3592902A
Expired / Lapsed
US
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Injection
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1968-04-09
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Granted: 1971-07-13
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Expires: 1988-04-09
Abstract
Abstract A STABLE INJECTION OF AN INDOLYLALIPHATIC ACID DERIVATIVE SUCH AS N-(P-CHLOROBENZOLY)-2-METHYL-5-METHOXY-3-INDOLYLACETIC ACID, N-CINNAMOLY-2-METHYL-5-METHOXY-3-INDOLYLACETIC ACID OR N-NICOTINOYL-2-METHYL-5-METHOXY-3INDOLYLACETIC ACID IS PREPARED BY DISSOLVING THE INDOLYLALIPHATIC ACID DERIVATIVE IN A NON-AQUEOUS ORGANIC SOLVENT FOR INJECTION AND ADDING AN AQUEOUS ORGANIC AMINE SOLUTION CONTAINING 0.6 TO 1 MOLE OF SAID ORGANIC AMINE PER 1 MOLE OF THE INDOLYLALIPHATIC ACID DERIVATIVE TO THE RESULTANT SOLUTION. THE THUS OBTAINED INJECTION IS USED AS AN ANTI-INFLAMMATORY DRUG.
Inventors
- 👤 Nobuyasu Sato
- 👤 Toshio Nakamura
- 👤 Hiroshi Takenaka
- 👤 Eiko Watabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:11
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/10; C07D209/18; C07D209/26; C07D209/28
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |