US3915980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imidazolyl-(2)-thio-alkanoic acid esters
Assignee: Hoechst AG
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Filing: 1973-12-04
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Granted: 1975-10-28
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Expires: 1993-12-04
Abstract
Abstract Imidazolyl-(2)-thioalkanoic acid ester of the formula I in which R stands for phenyl, phen-(C1-C3)alkyl, R1 stands for hydrogen or (C1-C3)-alkyl and R2 and R3 each stands for (C1-C3)-alkyl, AND THE PHYSIOLOGICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF, PROCESS FOR PREPARING THEM AND PHARMACEUTICAL PREPARATIONS CONTAINING THEM AS ACTIVE SUBSTANCE.
Inventors
- 👤 Ulrich Gebert
- 👤 Ernold Granzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:02
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/84
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
7 words
AN IMIDAZOLY-(2)-THIOALKANOIC ACID ESTER OF THE FORMULA
Claim 2
Dependent Claim
7 words
AN IMIDAZOLY-(2)-THIOALKANOIC ACID ESTER OF THE FORMULA
Claim 3
Dependent Claim
4 words
2-(1-benzylimidazolyl-(2)-thio)-propionic acid ethyl ester.
Claim 4
Dependent Claim
4 words
2-(1-benzylimidazolyl-(2)-thio)-propionic acid ethyl ester.
Claim 5
Dependent Claim
4 words
2-(1-benzylimidazolyl-(2)-thio)-isobutyric acid ethyl ester.
Claim 6
Dependent Claim
4 words
2-(1-benzylimidazolyl-(2)-thio)-isobutyric acid ethyl ester.
Claim 7
Dependent Claim
4 words
2-(1-phenylimidazolyl-(2)-thio)-propionic acid ethyl ester.
Claim 8
Dependent Claim
4 words
2-(1-phenylimidazolyl-(2)-thio)-propionic acid ethyl ester.
Claim 9
Dependent Claim
4 words
2-(1-phenylimidazolyl-(2)-thio)-isobutyric acid ethyl ester.
Claim 10
Dependent Claim
4 words
2-(1-phenylimidazolyl-(2)-thio)-isobutyric acid ethyl ester.
References Cited (Backward Citations)
US3636003A
Cited
US3819646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |