US3576001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-amino-3-aryl-3h-indol-3-ols and their method of preparation
Assignee: Wyeth LLC
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Filing: 1967-12-28
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Granted: 1971-04-20
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Expires: 1987-12-28
Abstract
Abstract A NEW PROCESS IS DISCLOSED REACTING A 2-BENZOYL ACYLANILIDE WITH IONIC CYANIDES TO FORM NEW 3-ARYL-2-IMINO3-INDOLINOLS AND 2-AMINO-3-ARYL-3H-INDOL-3-OLS. THE PRODUCTS MAY BE FURTHER PROCESSED INTO A NUMBER OF NEW DERIVATIVES WHICH HAVE THERAPEUTIC ACTIVITY IN EXPERIMENTAL AND COMPARATIVE PHARMACOLOGY.
Inventors
- 👤 Stanley C Bell
- 👤 Carl Gochman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:33
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/30; C07D209/40
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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |