US3879449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-Phenyl-4-hydroxy-1-buten-3-ones and esters thereof
Assignee: Sandoz AG
•
Filing: 1974-03-04
•
Granted: 1975-04-22
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Expires: 1994-03-04
Abstract
Abstract The compounds are 1-phenyl-1-buten-4-ol-3-ones and their esters, e.g., 2-(p-biphenylyl)-2-penten-5-ol-4-one, and are useful as pharmaceuticals, e.g., anti-inflammatory agents.
Inventors
- 👤 Paul L Anderson
- 👤 Darryl A Brittain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:42
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/007; C07C29/00; C07C29/36; C07C29/38; C07C29/42; C07C45/00; C07C45/51; C07C45/511; C07C45/512; C07C49/00; C07C49/20; C07C49/24; C07C49/245; C07C49/248; C07C49/255; C07D; C07D309/00; C07D309/02; C07D309/08; C07D309/10; C07D309/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA:
Claim 3
Dependent Claim
5 words
A compound of the formula:
Claim 4
Dependent Claim
5 words
A compound of the formula:
Claim 5
Dependent Claim
11 words
A compound of claim 1 whererin A is a hydrogen atom.
Claim 6
Dependent Claim
8 words
The compound of claim 2 which is 2''(p-biphenylyl)-2-penten-5-ol-4-one.
Claim 7
Dependent Claim
9 words
A compound of claim 2 whrein R1 is methyl.
Claim 8
Dependent Claim
13 words
A compound of claim 2 in which Y is substituted or unsubstituted phenyl.
Claim 9
Dependent Claim
9 words
A compound of claim 1 wherein A is alkanoyl.
Claim 10
Dependent Claim
9 words
A compound of claim 6 wherein R1 is methyl.
Claim 11
Dependent Claim
19 words
A compound of claim 1 wherein Y is halo having an atomic weight of from about 34 to 80.
Claim 12
Dependent Claim
9 words
A compound of claim 1 wherein Y is isobutyl.
Claim 13
Dependent Claim
9 words
A compound of claim 1 wherein Y is tert.-butyl.
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) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |