US4092350A
Expired / Lapsed
US
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Alkanoic acid, process for its production and method of use thereof
Assignee: Toyama Chemical Co Ltd
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Filing: 1976-04-14
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Granted: 1978-05-30
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Expires: 1996-04-14
Abstract
Abstract A novel 2-[4-(3-oxo- or hydroxy-alkyl)phenyl]alkanoic acid and a non-toxic salt thereof. These compounds are useful for treating symptoms of inflammation and pain in mammals including man. This disclosure relates to such compounds, a process for producing the same, a pharmaceutical composition containing such a compound, and a method for treating symptoms of inflammation and pain.
Inventors
- 👤 Koji Miura
- 👤 Kenjun Takeshima
- 👤 Takuya Kodama
- 👤 Masashi Imamura
- 👤 Kyoko Hongo
- 👤 Noboru Takagawa
- 👤 Yukitaka Hamatani
- 👤 Yasuyuki Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:48
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/56; C07C45/57; C07C45/58; A; A61; A61P; A61P25/00; A61P25/04; A61P29/00; C07C45/45; C07C45/46; C07C45/59; C07C51/00; C07C51/16; C07C59/00; C07C59/40; C07C59/42; C07C59/48; C07C59/76; C07C59/84; C07D; C07D303/00; C07D303/02; C07D303/48
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
49 words
A compound represented by the general formula: ##STR3## wherein R 1 represents hydrogen; R 2 represents hydroxy; R 3 represents lower alkyl; R 4 represents hydrogen or lower alkyl; and R 5 represents lower alkyl; wherein lower alkyl has 1 - 5 carbon atoms; or a non-toxic salt thereof.
Claim 2
Dependent Claim
49 words
A compound represented by the general formula: ##STR3## wherein R 1 represents hydrogen; R 2 represents hydroxy; R 3 represents lower alkyl; R 4 represents hydrogen or lower alkyl; and R 5 represents lower alkyl; wherein lower alkyl has 1 - 5 carbon atoms; or a non-toxic salt thereof.
Claim 3
Dependent Claim
22 words
A compound according to claim 1 wherein R 3 is methyl, R 4 is methyl or ethyl, and R 5 is methyl.
Claim 4
Dependent Claim
14 words
The compound according to claim 1 which is 2-[4-(2-ethyl-3-hydroxybutyl)phenyl]propionic acid or its non-toxic salt.
Claim 5
Dependent Claim
15 words
The compound of claim 1, in which R 3 and R 5 are methyl groups.
Claim 6
Dependent Claim
24 words
The compound of claim 1, in which R 3 and R 5 are methyl groups, and R 4 is a methyl or ethyl group.
Claim 7
Dependent Claim
19 words
The compound of claim 1 wherein R 1 represents a hydrogen atom and R 2 represents a hydroxy group.
Claim 8
Dependent Claim
19 words
The compound of claim 1 wherein R 3 is methyl, R 4 is ethyl, and R 5 is methyl.
Claim 9
Dependent Claim
19 words
The compound of claim 1 wherein R 3 is methyl, R 4 is methyl, and R 5 is methyl.
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) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |