Patent US3995044A successfully refreshed from Google Patents.
US3995044A
Expired / Lapsed
US
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Pyridine carboxylic acid amides for mycobacterium infections
Assignee: Bayer AG
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Filing: 1975-06-03
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Granted: 1976-11-30
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Expires: 1995-06-03
Abstract
Abstract Benzoic acid amides characterized by the presence of a nitro, cyano, trifluoromethyl, alkylsulfonyl, carboxy, carbalkoxy, amido or sulfonamido substituent in the phenyl ring and by the presence of a heterocyclic group connected to the amide nitrogen atom through a hydrocarbon chain are antibacterial agents and in particular antituberculosis agents. The compounds, of which N-(pyrid-2-yl-methyl)3,5-dinitrobenzoic acid amide is a typical embodiment, are prepared by the reaction of an appropriately substituted benzoic acid, or derivative thereof, with an appropriate amine.
Inventors
- 👤 Hans-Joachim Kabbe
- 👤 Hinrich Otten
- 👤 Karl Heinrich Mayer
- 👤 Erich Klauke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:07
CPC Classifications
C; C07; C07D; C07D309/00; C07D309/16; C07D309/20; C07D207/00; C07D207/02; C07D207/30; C07D207/32; C07D207/33; C07D207/335; C07D209/00; C07D209/02; C07D209/04; C07D209/10; C07D209/14; C07D209/16; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/36; C07D213/40; C07D215/00; C07D215/02; C07D215/12; C07D217/00; C07D217/12; C07D217/14; C07D231/00; C07D231/54; C07D231/56; C07D235/00; C07D235/02; C07D235/04; C07D235/06; C07D235/14; C07D239/00; C07D239/02; C07D239/24; C07D239/26; C07D249/00; C07D249/02; C07D249/04; C07D277/00; C07D277/02; C07D277/20; C07D277/22; C07D277/28; C07D307/00; C07D307/02; C07D307/04; C07D307/10; C07D307/14; C07D307/34; C07D307/38; C07D307/52
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
97 words
The method of combatting Mycobacterium infections in humans and other animals which comprises administering parenterally or orally to said human or other animal from about 20 mg to about 200 mg/kg of a compound of the formula: ##SPC13## wherein R is hydrogen, methyl, ethyl, benzyl or pyridylmethyl; R 1 is nitro, cyano, trifluoromethyl, methylsulfonyl, carboxy, carbomethoxy or carbethoxy; R 2 is hydrogen, nitro, cyano, trifluoromethyl, methylsulfonyl, carboxy, carbomethoxy or carbethoxy; each of R 3 and R 4 , independent of the other, is hydrogen, chloro, bromo or methyl; and A is methylene, ethylene, ethylidene, trimethylene or benzylidene.
Claim 2
Independent Claim
97 words
The method of combatting Mycobacterium infections in humans and other animals which comprises administering parenterally or orally to said human or other animal from about 20 mg to about 200 mg/kg of a compound of the formula: ##SPC13## wherein R is hydrogen, methyl, ethyl, benzyl or pyridylmethyl; R 1 is nitro, cyano, trifluoromethyl, methylsulfonyl, carboxy, carbomethoxy or carbethoxy; R 2 is hydrogen, nitro, cyano, trifluoromethyl, methylsulfonyl, carboxy, carbomethoxy or carbethoxy; each of R 3 and R 4 , independent of the other, is hydrogen, chloro, bromo or methyl; and A is methylene, ethylene, ethylidene, trimethylene or benzylidene.
Claim 3
Dependent Claim
19 words
The method according to claim 1 wherein said compound is administered in combination with a pharmaceutically acceptable nontoxic carrier.
Claim 4
Dependent Claim
14 words
The method according to claim 1 in which said compound is N-[2-(pyrid-2-yl)ethyl]-3,5-dinitrobenzoic acid amide.
Claim 5
Dependent Claim
14 words
The method according to claim 1 in which said compound is N-[1-(pyrid-2-yl)ethyl]-3,5-dinitrobenzoic acid amide.
Claim 6
Dependent Claim
14 words
The method according to claim 1 in which said compound is N-(pyrid-2-ylmethyl)-3,5-dinitrobenzoic acid amide.
Claim 7
Dependent Claim
14 words
The method according to claim 1 in which said compound is N-(pyrid-2-ylmethyl)-3-carboxybenzoic acid amide.
Claim 8
Dependent Claim
14 words
The method according to claim 1 in which said compound is N-(pyrid-3-ylmethyl)-3,5-dinitrobenzoic acid amide.
Claim 9
Dependent Claim
14 words
The method according to claim 1 in which said compound is N-(pyrid-4-ylmethyl)-3,5-dinitrobenzoic acid amide.
Claim 10
Dependent Claim
14 words
The method according to claim 1 in which said compound is N-(2-methylpyrid-6-ylmethyl)-3,5-dinitrobenzoic acid amide.
Claim 11
Dependent Claim
14 words
The method according to claim 1 in which said compound is N-(pyrid-2-ylmethyl)-3-cyanobenzoic acid amide.
Claim 12
Dependent Claim
14 words
The method according to claim 1 in which said compound is N-(pyrid-2-ylmethyl)-3-carbomethoxybenzoic acid amide.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |