Patent US3880916A successfully refreshed from Google Patents.
US3880916A
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Cycloaliphatic acids
Assignee: Novartis Corp
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Filing: 1973-04-12
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Granted: 1975-04-29
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Expires: 1993-04-12
Abstract
Abstract R1 H or alk(en)yl R2 cycloalk(en)yl or cycloalk(en)yl-alkyl R3 aliphatic, cycloaliphatic, araliphatic or aromatic radical, CF3, NO2, acyl, free or functionally converted OH, SH, carboxy or sulfo AND FUNCTIONAL ACID DERIVATIVES THEREOF, ARE ANTI-INFLAMMATORY AGENTS. New Alpha -aryl-cycloaliphatic acids, e.g., those of the formula
Inventors
- 👤 Daniel Frederick Dickel
- 👤 Stevens George De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:23
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/46
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
6 words
THE A-ARYL-CYCLOALIPHATIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
THE A-ARYL-CYCLOALIPHATIC ACID HAVING THE FORMULA
Claim 3
Dependent Claim
67 words
A compound as claimed in claim 1, in which formula R1 is hydrogen, R2 is 3 to 4 ring-membered unsubstituted cycloalkyl or 3 to 4 ring-membered cycloalkyl-lower alkyl, R3 is 5 to 7 ring-membered 1-cycloalkenyl, Ph is R4-1,4-phenylene, and R4 is hydrogen, lower alkyl, lower alkoxy, halogeno, trifluoromethyl or amino, or a lower alkyl ester, or the ammonium, an alkali metal or alkaline earth metal salt thereof.
Claim 4
Dependent Claim
11 words
A compound as claimed in claim 1 and having the formula
Claim 5
Dependent Claim
36 words
A compound as claimed in claim 3, in which formula R5 is cyclopropyl, cyclobutyl or cyclopropylmethyl, R6 is hydrogen, methyl, chloro or amino and R7 is 1-cyclohexenyl, or the ammonium or an alkali metal salt thereof.
Claim 6
Dependent Claim
15 words
A compound as claimed in claim 3 and being the Alpha -cyclopropyl- Alpha -(4-(1-cyclohexenyl)-phenyl)-acetic acid.
References Cited (Backward Citations)
US3457300A
Cited
US3822309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |