US4352803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel naphthyridine derivatives, intermediates thereof, processes for preparation thereof, and use thereof
Assignee: Laboratoire Roger Bellon SA
•
Filing: 1981-05-18
•
Granted: 1982-10-05
•
Expires: 2001-05-18
Abstract
Abstract This invention relates to 1,8-naphthyridine compounds of the formula <IMAGE> wherein X is a halogen atom especially fluorine atom, R1 is an ethyl group or a vinyl group, and R2 is a hydrogen atom or a lower alkyl group, their salts and processes for the preparation of them. The 1,8-naphthyridine compounds and their salts are useful as antibacterial agents and intermediates thereof.
Inventors
- 👤 Jun-ichi Matsumoto
- 👤 Yoshiyuki Takase
- 👤 Yoshiro Nishimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:41
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/74; C07D213/75; C07D213/76; C07D213/77; C07D471/00; C07D471/02; C07D471/04; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/55
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
30 words
A pharmaceutical composition which comprises an antibacterially effective amount of a 1,8-naphthyridine compound of the formula ##STR31## or a non-toxic pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier therefor.
Claim 2
Dependent Claim
30 words
A pharmaceutical composition which comprises an antibacterially effective amount of a 1,8-naphthyridine compound of the formula ##STR31## or a non-toxic pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier therefor.
Claim 3
Dependent Claim
34 words
A pharmaceutical composition for oral administration which comprises an antibacterially effective amount of a 1,8-naphthyridine compound of the formula ##STR32## or a non-toxic pharmaceutically acceptable salt thereof and an orally acceptable pharmaceutical carrier therefor.
Claim 4
Dependent Claim
34 words
A pharmaceutical composition for oral administration which comprises an antibacterially effective amount of a 1,8-naphthyridine compound of the formula ##STR32## or a non-toxic pharmaceutically acceptable salt thereof and an orally acceptable pharmaceutical carrier therefor.
Claim 5
Independent Claim
37 words
A method for the treatment of a bacterial infectious disease which comprises administering to a warm-blooded animal suffering from such disease an antibacterially effective amount of a 1,8-naphthyridine compound ##STR33## or a non-toxic pharmaceutically acceptable salt thereof.
Claim 6
Independent Claim
37 words
A method for the treatment of a bacterial infectious disease which comprises administering to a warm-blooded animal suffering from such disease an antibacterially effective amount of a 1,8-naphthyridine compound ##STR33## or a non-toxic pharmaceutically acceptable salt thereof.
Claim 7
Dependent Claim
13 words
A method according to claim 3 wherein the administration is by oral administration.
Claim 8
Dependent Claim
15 words
A method according to claim 4 wherein the disease is a bacterial systemic infectious disease.
Claim 9
Dependent Claim
16 words
A method according to claim 4 wherein the disease is a bacterial urinary tract infectious disease.
References Cited (Backward Citations)
US4017622A
Cited
US4146719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-04 | 1986-04-05 | 1986-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-04 | 1990-04-05 | 1990-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-04 | 1994-04-05 | 1994-10-05 | $7700.00 | Window Closed / Lapsed |