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US3691202A
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Phenyl-thienyl- and phenyl-furyl malonic acid derivatives
Assignee: Imperial Chemical Industries Ltd
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Filing: 1970-07-07
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Granted: 1972-09-12
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Expires: 1990-07-07
Abstract
Abstract Phenyl-thienyl-malonic acid derivatives and phenyl-furyl-malonic acid derivatives, processes for their preparation, and pharmaceutical compositions comprising them. Compounds have antiinflammatory, hypocholesterolaemic, analgesic and antipyretic activity. A representative compound is dimethyl Alpha -(5-pchlorophenyl-thien-2-yl)- Alpha -methylmalonate.
Inventors
- 👤 Derrick Michael O'mant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:44
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/38; A61K31/335; A61K31/34; C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/54
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
60 words
A compound as claimed in claim 1 wherein X stands for hydrogen or a bromine atom, Y stands for a phenyl radical optionally substituted by a fluorine, chlorine or bromine atom R1 stands for hydrogen or a methyl radical, R2 stands for a C2 6 alkoxycarbonyl or benzyloxycarbonyl radical, and R3 stands for a C1 5 alkyl or benzyl radical.
Claim 2
Dependent Claim
14 words
A compound as claimed in Claim 1 which is dimethyl Alpha -(5-p-chlorophenylthien-2yl)- Alpha -methylmalonate.
Claim 3
Dependent Claim
15 words
A compound as claimed in claim 1 which is dimethyl Alpha - -(5-p-chlorophenylfur-2-yl)- Alpha -methylmalonate.
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) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |