US3962284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-(5-aryl-2-furyl)-3-hydroxypropionic acids and ethyl esters
Assignee: Warner Chilcott Pharmaceuticals Inc
•
Filing: 1975-08-20
•
Granted: 1976-06-08
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Expires: 1995-08-20
Abstract
Abstract A series of 3-(5-aryl-2-furyl)-3-hydroxypropionic acids and ethyl esters are useful as antiinflammatory agents.
Inventors
- 👤 Stanford S. Pelosi, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:24
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/04; C07D307/10; C07D307/16; A; A61; A61P; A61P29/00; C07D307/34; C07D307/38; C07D307/54; C07F; C07F1/00; C07F1/02; C07F7/00; C07F7/02; C07F7/08; C07F7/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
22 words
A compound of the formula: ##SPC3## wherein X is 4-chloro, 3,4-dichloro, 4-bromo, 3-chloro, 4-fluoro or hydrogen and R is hydrogen or ethyl.
Claim 2
Dependent Claim
22 words
A compound of the formula: ##SPC3## wherein X is 4-chloro, 3,4-dichloro, 4-bromo, 3-chloro, 4-fluoro or hydrogen and R is hydrogen or ethyl.
Claim 3
Dependent Claim
4 words
The compound ethyl 3-[5-(4-chlorophenyl)-2-furyl]-3-hydroxypropionate.
Claim 4
Dependent Claim
4 words
The compound ethyl 3-[5-(4-chlorophenyl)-2-furyl]-3-hydroxypropionate.
Claim 5
Dependent Claim
4 words
The compound 3-[5-(p-chlorophenyl)-2-furyl]-3-hydroxypropionic acid.
Claim 6
Dependent Claim
4 words
The compound 3-[5-(p-chlorophenyl)-2-furyl]-3-hydroxypropionic acid.
Claim 7
Dependent Claim
4 words
The compound 3-[5-(3-chlorophenyl)-2-furyl]-3-hydroxypropionic acid.
Claim 8
Dependent Claim
4 words
The compound 3-[5-(3-chlorophenyl)-2-furyl]-3-hydroxypropionic acid.
Claim 9
Dependent Claim
4 words
The compound 3-[5-(3,4-dichlorophenyl)-2-furyl]-3-hydroxypropionic acid.
Claim 10
Dependent Claim
4 words
The compound 3-[5-(3,4-dichlorophenyl)-2-furyl]-3-hydroxypropionic acid.
Claim 11
Dependent Claim
4 words
The compound 3-[5-(4-bromophenyl)-3-hydroxypropionic acid.
Claim 12
Dependent Claim
4 words
The compound 3-[5-(4-bromophenyl)-3-hydroxypropionic acid.
Claim 13
Dependent Claim
4 words
The compound 3-[5-(4-fluorophenyl)-2-furyl]-3-hydroxypropionic acid.
Claim 14
Dependent Claim
4 words
The compound 3-[5-(4-fluorophenyl)-2-furyl]-3-hydroxypropionic acid.
Claim 15
Dependent Claim
4 words
The compound 3-(5-phenyl-2-furyl)-3-hydroxypropionic acid.
Claim 16
Dependent Claim
4 words
The compound 3-(5-phenyl-2-furyl)-3-hydroxypropionic acid.
References Cited (Backward Citations)
US3379752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |