US4036962A
Expired / Lapsed
US
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6,7-Methylenedioxy-1-(2,2,2-trifluoroethyl)-4(1H)-quinolone-3-carboxylic acid and its salts and esters
Assignee: EIDP Inc
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Filing: 1975-05-16
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Granted: 1977-07-19
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Expires: 1995-05-16
Abstract
Abstract Certain novel 6,7-methylenedioxy-1-(2,2,2-trifluoroethyl)-4(1H)-quinolone-3-carboxylic acid esters are useful in the treatment of bacterial infections in warm-blooded animals. The novel 6,7-methylenedioxy-1-(2,2,2-trifluoroethyl)-4(1H)-quinolone-3-carboxylic acid and its salts and alkyl esters of 1 to 3 carbon atoms are useful as chemical intermediates.
Inventors
- 👤 Kyu Tai Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:09
CPC Classifications
C; C07; C07D; C07D491/00; C07D491/02; C07D491/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
27 words
A compound of the formula ##STR9## wherein R 2 is tertiary alkyl of 4-10 carbon atoms wherein the carbon adjacent to the carbonyl is the tertiary carbon.
Claim 2
Dependent Claim
27 words
A compound of the formula ##STR9## wherein R 2 is tertiary alkyl of 4-10 carbon atoms wherein the carbon adjacent to the carbonyl is the tertiary carbon.
Claim 3
Dependent Claim
11 words
The compound of claim 1 which is 6,7-methylenedioxy-1-(2,2,2-trifluoroethyl)-4(1H)-quinolone-3-carboxylic acid, trimethylacetoxymethyl ester.
Claim 4
Dependent Claim
27 words
A method of treating bacterial infection in a warm-blooded animal which comprises administering to the warm-blooded animal an effective antibacterial amount of a compound of claim 1.
Claim 5
Dependent Claim
27 words
A method of treating bacterial infection in a warm-blooded animal which comprises administering to the warm-blooded animal an effective antibacterial amount of a compound of claim 2.
Claim 6
Dependent Claim
19 words
A pharmaceutical composition comprising a suitable pharmaceutical carrier and an effective antibacterial amount of a compound of claim 1.
Claim 7
Dependent Claim
19 words
A pharmaceutical composition comprising a suitable pharmaceutical carrier and an effective antibacterial amount of a compound of claim 2.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-18 | 1981-01-17 | 1981-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-18 | 1985-01-17 | 1985-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-18 | 1989-01-17 | 1989-07-19 | $7700.00 | Window Closed / Lapsed |