Patent US4001243A successfully refreshed from Google Patents.
US4001243A
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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: 1977-01-04
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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
2026-11-06 14:17
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: 2
Claim 1
Independent Claim
80 words
A compound having the formula ##STR7## wherein R is methyl, ethyl or trifluoromethyl; Y is methylenedioxy or ethylenedioxy bonded to adjacent ring positions; m is zero, one or two, and when R is trifluoromethyl, m is one; and R 1 is -OH, -OR 2 where R 2 is alkyl having 1 to 4 carbon atoms, halide, -OM where M is a pharmaceutically acceptable cation, NHR 3 where R 3 is alkyl having 1 to 4 carbon atoms,-NHNH 2 , ##STR8##
Claim 2
Dependent Claim
80 words
A compound having the formula ##STR7## wherein R is methyl, ethyl or trifluoromethyl; Y is methylenedioxy or ethylenedioxy bonded to adjacent ring positions; m is zero, one or two, and when R is trifluoromethyl, m is one; and R 1 is -OH, -OR 2 where R 2 is alkyl having 1 to 4 carbon atoms, halide, -OM where M is a pharmaceutically acceptable cation, NHR 3 where R 3 is alkyl having 1 to 4 carbon atoms,-NHNH 2 , ##STR8##
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) | 1980-01-04 | 1980-07-05 | 1981-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-04 | 1984-07-05 | 1985-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-04 | 1988-07-05 | 1989-01-04 | $7700.00 | Window Closed / Lapsed |