US3948943A
Expired / Lapsed
US
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Aminocarboxylic acid higher alkylamides
Assignee: Boehringer Ingelheim GmbH
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Filing: 1974-04-29
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Granted: 1976-04-06
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Expires: 1994-04-29
Abstract
Abstract Compounds of the formula R1---R2O ¦¦ PARALLEL CCH-C-NH-R3 PARALLEL ANGLE ON ¦ H wherein R1 is lower alkyl or aryl, R2 is hydrogen or, together with R1, ethylene, and R3 is straight or branched alkyl of 8 to 22 carbon atoms; THE COMPOUNDS HAVE USEFUL THERAPEUTIC, DERMATOLOGICAL AND COSMETIC PROPERTIES.
Inventors
- 👤 Hans Eberhardt
- 👤 Rolf Stefan Brickl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:14
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D207/24; C07D207/26; C07D207/273; C07D207/277; C07D207/28; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/44; A61K8/49; A61K8/4906; A61K8/4913; A61Q; A61Q19/00; A61Q5/00; A61Q5/006; A61Q5/008; A61Q19/10; A61Q5/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
38 words
A compound of the formula ##EQU7## wherein R 1 is methyl or phenyl, R 2 is hydrogen or, together with R 1 , ethylene, and R 3 is straight or branched alkyl of 8 to 22 carbon atoms.
Claim 2
Dependent Claim
38 words
A compound of the formula ##EQU7## wherein R 1 is methyl or phenyl, R 2 is hydrogen or, together with R 1 , ethylene, and R 3 is straight or branched alkyl of 8 to 22 carbon atoms.
Claim 3
Dependent Claim
10 words
The compound of claim 1 which is 5-pyrrolidone-(2)-carboxylic acid n-hexadecylamide.
Claim 4
Dependent Claim
10 words
The compound of claim 1 which is 5-pyrrolidone-(2)-carboxylic acid n-dodecylamide.
Claim 5
Dependent Claim
10 words
The compound of claim 1 which is 5-pyrrolidone-(2)-carboxylic acid n-octadecylamide.
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) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |