US4014877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted benzo[ij]quinolizine-2-carboxylic acids and derivatives thereof
Assignee: Riker Laboratories Inc
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Filing: 1975-01-22
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Granted: 1977-03-29
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Expires: 1995-01-22
Abstract
Abstract Certain substituted 6,7-dihydro-1-oxo-1H,5H-benzo[ij]-quinolizine-2-carboxylic acids and hydrazides, esters, amides and salts thereof, intermediates therefor, and a process for their preparation are described; the compounds are active as anti-microbial agents.
Inventors
- 👤 John F. Gerster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:12
CPC Classifications
C; C07; C07D; C07D455/00; C07D455/03; C07D455/04; A; A01; A01N; A01N43/00; A01N43/90; C07D215/00; C07D215/02; C07D215/16; C07D215/18; C07D215/20; C07D471/00; C07D471/02; C07D471/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
65 words
A compound having the formula ##STR6## wherein Y is lower alkyl, lower alkoxy, halogen, hydroxy, nitro, cyano, trifluoromethyl, amino, lower alkanamido, trifluoroacetamido or N,N-lower dialkylamino; R is methyl, ethyl or trifluoromethyl; n is zero, one or two; m is zero, one or two, and when R is trifluoromethyl, m is one; and R 1 is halogen, amino, lower alkylamido, N,N-lower dialkylamino hydrazino, morpholino or piperidino.
Claim 2
Dependent Claim
65 words
A compound having the formula ##STR6## wherein Y is lower alkyl, lower alkoxy, halogen, hydroxy, nitro, cyano, trifluoromethyl, amino, lower alkanamido, trifluoroacetamido or N,N-lower dialkylamino; R is methyl, ethyl or trifluoromethyl; n is zero, one or two; m is zero, one or two, and when R is trifluoromethyl, m is one; and R 1 is halogen, amino, lower alkylamido, N,N-lower dialkylamino hydrazino, morpholino or piperidino.
Claim 3
Dependent Claim
8 words
The compound 6,7-dihydro-9-fluoro-5-methyl-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxyl chloride according to claim 1.
Claim 4
Dependent Claim
7 words
The compound N,N-dimethyl-6,7-dihydro-9-fluoro-5-methyl-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxamide according to claim 1.
Claim 5
Dependent Claim
10 words
The compound 6,7-dihydro-9-fluoro-5-methyl-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylic acid morpholine amide according to claim 1.
Claim 6
Dependent Claim
9 words
The compound 6,7-dihydro-9-fluoro-5-methyl-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylic acid hydrazide according to claim 1.
References Cited (Backward Citations)
US3524858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |