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US4620007A
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6-fluoro-7-chloro-1-cyclopropyl-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid
Assignee: Bayer AG
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Filing: 1985-12-11
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Granted: 1986-10-28
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Expires: 2005-12-11
Abstract
Abstract The invention relates to 7-amino-1-cyclo-propyl-4-oxo-1,4-dihydro-naphthyridine (or quinoline)-3-carboxylic acids of Formula I as defined in the specifications. Also included in the invention is a process for the preparation of said compounds of Formula I and Ia. Further, the invention includes compositions containing the compounds of Formula I or Ia and the use of said compounds and compositions as antibacterial agents.
Inventors
- 👤 Klaus Grohe
- 👤 Hans-Joachim Zeiler
- 👤 Karl G. Metzger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:05
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/02; C07D471/04; C07D215/00; C07D215/02; C07D215/16; C07D215/48; C07D215/54; C07D215/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
2 words
1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-chloro-quinoline-3-carboxylic acid.
Claim 2
Dependent Claim
2 words
1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-chloro-quinoline-3-carboxylic acid.
References Cited (Backward Citations)
US3849421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-27 | 1990-04-28 | 1990-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-27 | 1994-04-28 | 1994-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-27 | 1998-04-28 | 1998-10-28 | $7700.00 | Window Closed / Lapsed |