Patent US3674836A successfully refreshed from Google Patents.
US3674836A
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2,2-dimethyl-{11 -aryloxy-alkanoic acids and salts and esters thereof
Assignee: Parke Davis and Co LLC
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Filing: 1969-04-24
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Granted: 1972-07-04
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Expires: 1989-04-24
Abstract
Abstract A series of 2,2-dimethyl- omega -phenoxyalkanoic acids and 2,2dimethyl- omega -(disubstituted phenoxy)alkanoic acids having 3 to 6 methylene groups between the phenoxy group or 0 phenoxy group and the carbon atom substituted by two methyl groups; and their salts and esters. The compounds reduce serum triglyceride levels and can be produced by (a) reacting an alkali metal derivative of an isobutyric acid, salt, or ester with a phenoxyalkyl halide or a disubstituted phenoxyalkyl halide; (b) esterifying a carboxylic acid; or (c) hydrolyzing a carboxylate ester.
Inventors
- 👤 Paul L Creger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:27
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07C51/00; C07C51/09; C07C51/347; C07C51/367
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
10 words
A compound according to claim 1 wherein R represents hydrogen.
Claim 2
Dependent Claim
11 words
A compound according to claim 1 wherein R represents lower alkyl.
Claim 3
Dependent Claim
10 words
A compound according to claim 1 which is 2,2-dimethyl-5-phenoxyvaleric acid.
Claim 4
Dependent Claim
10 words
A compound according to claim 1 which is 2,2-dimethyl-6-phenoxyhexanoic acid.
Claim 5
Dependent Claim
10 words
A compound according to claim 1 which is 2,2-dimethyl-5-(2,5-xylyloxy)valeric acid.
Claim 6
Dependent Claim
10 words
A compound according to claim 1 which is 2,2-dimethyl-5-(3,5-xylyloxy)valeric acid.
References Cited (Backward Citations)
NL6607056A
Cited
US3369025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |