Patent US3600399A successfully refreshed from Google Patents.
US3600399A
Expired / Lapsed
US
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Certain 2-amino-5-imidazol-2-yl-1,3,4-thiadiazoles
Assignee: Wyeth Holdings LLC
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Filing: 1968-10-11
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Granted: 1971-08-17
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Expires: 1988-10-11
Abstract
Abstract THE PREPARATION OF SUBSTITUTED IMIDAZOLYL-1,3,4-THIADIAZOLES BY FIRST PREPARING THE IMIDAZOLE MOIETY AND THEN CONSTRUCTING THE 1,3,4-THIADIAZOLE MOIETY OR BY FIRST PREPARING THE 1,3,4-THIADIAZOLE HALF AND THEN ADDING THE IMIDAZOLE MOIETY, ARE DESCRIBED. A NUMBER OF THESE COMPOUNDS ARE USEFUL AS DEPRESSANT AGENTS FOR THE TREATMENT OF MENTAL DISEASE AND ALSO AS INTERMEDIATES IN THE PREPARATION OF 2-AMINO-5-(1-METHYL-5-NITRO-2-IMIDAZOLYL)-1,3, 4-THIADIAZOLE. THE LATTER COMPOUND HAS HIGH ANTIBACTERIAL AND ANTIPROTOZOAL ACTIVITY.
Inventors
- 👤 Gerald Berkelhammer
- 👤 William Henry Gastrock
- 👤 William Alan Remers
- 👤 Andrew Stephen Tomcufcik
- 👤 Martin Joseph Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:56
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/12; C07D285/125; C07D285/135
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |