US3932499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(Substituted biphenylyl) propionic acids
Assignee: Boots Co PLC
•
Filing: 1971-09-22
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Granted: 1976-01-13
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Expires: 1991-09-22
Abstract
Abstract 2-(Substituted biphenylyl)propionic acids and salts and esters thereof, said substituents being selected from fluorine and bromine atoms, useful as anti-inflammatory agents, and their preparation.
Inventors
- 👤 Stewart Sanders Adams
- 👤 Bernard John Armitage
- 👤 John Stuart Nicholson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:17
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/52; C07C57/58
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
54 words
A compound of formula I ##SPC7## in which R 1 is fluorine or bromine; one of R 2 and R 3 is fluorine or bromine and the other is hydrogen; and R is hydrogen or lower alkyl; (together with) or a pharmaceutically acceptable inorganic and organic salt(s) of said compound(s) when R is hydrogen.
Claim 2
Dependent Claim
54 words
A compound of formula I ##SPC7## in which R 1 is fluorine or bromine; one of R 2 and R 3 is fluorine or bromine and the other is hydrogen; and R is hydrogen or lower alkyl; (together with) or a pharmaceutically acceptable inorganic and organic salt(s) of said compound(s) when R is hydrogen.
Claim 3
Dependent Claim
2 words
2-(2',4'-Difluoro-4-biphenylyl)propionic acid.
Claim 4
Dependent Claim
2 words
2-(2',4'-Difluoro-4-biphenylyl)propionic acid.
Claim 5
Dependent Claim
2 words
2-(2'-Bromo-4'-fluoro-4-biphenylyl)propionic acid.
Claim 6
Dependent Claim
2 words
2-(2'-Bromo-4'-fluoro-4-biphenylyl)propionic acid.
Claim 7
Dependent Claim
2 words
2-(2,4'-Difluoro-4-biphenylyl)propionic acid.
Claim 8
Dependent Claim
2 words
2-(2,4'-Difluoro-4-biphenylyl)propionic acid.
Claim 9
Dependent Claim
2 words
2-(2-Bromo-4'-fluoro-4-biphenylyl)propionic acid.
Claim 10
Dependent Claim
2 words
2-(2-Bromo-4'-fluoro-4-biphenylyl)propionic acid.
Claim 11
Dependent Claim
2 words
2-(2',4'-Dibromo-4-biphenylyl)propionic acid.
Claim 12
Dependent Claim
2 words
2-(2',4'-Dibromo-4-biphenylyl)propionic acid.
Claim 13
Dependent Claim
2 words
2-(4'-Bromo-2'-fluoro-4-biphenylyl)propionic acid.
Claim 14
Dependent Claim
2 words
2-(4'-Bromo-2'-fluoro-4-biphenylyl)propionic acid.
Claim 15
Dependent Claim
2 words
2-(4'-Bromo-2-fluoro-4-biphenylyl)propionic acid.
Claim 16
Dependent Claim
2 words
2-(4'-Bromo-2-fluoro-4-biphenylyl)propionic acid.
Claim 17
Dependent Claim
2 words
2-(2,4'-Dibromo-4-biphenylyl)propionic acid.
Claim 18
Dependent Claim
2 words
2-(2,4'-Dibromo-4-biphenylyl)propionic acid.
References Cited (Backward Citations)
US3755427A
Cited
US3624142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-12 | 1979-07-14 | 1980-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-12 | 1983-07-14 | 1984-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-12 | 1987-07-14 | 1988-01-13 | $7700.00 | Window Closed / Lapsed |