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US4058558A Expired / Lapsed US ⏱️ 0.0 years remaining

Aromatic keto acids and derivatives having analgetic, antiinflammatory, and hypocholesterolemizing action

Assignee: Pierre Fabre SA
•
Filing: 1975-03-21
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Granted: 1977-11-15
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Expires: 1995-03-21
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Abstract

Abstract This invention relates to new chemical compounds useful as drugs, as well as to pharmaceutical compositions containing the same. The new products are aromatic keto acid compounds with antiinflammatory as well as analgetic and hypocholesteremic activity and having the general formula ##STR1## wherein R 1 is hydrogen, halogen, phenyl, halophenyl, phenoxy, or substituted phenoxy. R 2 is hydrogen or alkoxy. R 1 and R 2 may form a ring, for instance: phenyl or cyclohexyl. R 3 is always other than hydrogen, being either methyl (CH 3 ) or methylene. When R 3 is CH 3 , a double bond is present between the A and B carbons. When R 3 is a methylene connected by a double bond to the B carbon, there can be only a single bond between the A and B carbons. The remaining valences of the A carbon atom are satisfied by hydrogen atoms. R 4 may be OH, alkoxy, ##STR2## The drugs containing these active principles are useful in the prevention and treatment of inflammatory syndromes, pain, and conditions involving excess cholresterol.

Inventors

  • 👤 Henri Cousse
  • 👤 Gilbert Mouzin
  • 👤 Jean-Pierre Rieu

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 07:14
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/18; C07D295/182; C07D295/185; C07C; C07C59/00; C07C59/40; C07C59/76; C07C59/84; C07C59/86; C07C59/88; C07C59/90

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 6 words
2-methylene 4-oxo 4-(4'-orthochlorophenyl phenyl) butyric acid.
Claim 2
Dependent Claim 6 words
2-methylene 4-oxo 4-(4'-orthochlorophenyl phenyl) butyric acid.

References Cited (Backward Citations)

US2130989A Cited
US2654778A Cited
US3182061A Cited
US3754021A Cited
DE2047806A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-11-14 1981-05-16 1981-11-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-11-14 1985-05-16 1985-11-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-11-14 1989-05-16 1989-11-15 $7700.00 Window Closed / Lapsed

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