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US4072689A Expired / Lapsed US ⏱️ 0.0 years remaining

Monoamino 2,4,5-trisubstituted oxazoles

Assignee: Gruppo Lepetit SpA
•
Filing: 1975-12-17
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Granted: 1978-02-07
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Expires: 1995-12-17
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Abstract

Abstract Pharmacologically active 2,4,5-trisubstituted oxazoles of the general formula <IMAGE> (I) wherein A is cyclohexyl, thienyl or a group of the formula <IMAGE> in which R represents one to three substituents each independently selected from the group consisting of hydrogen, lower alkyl, halo, halo-lower alkyl, lower alkoxy, nitro, cyano, amino, carbamoyl, acetamino or carboxy; one of the R1 and R2 groups is a lower alkyl group and the other is an amido group, <IMAGE> wherein R3 is selected from the group consisting of hydrogen, lower alkyl, lower alkenyl, cycloalkyl, phenyl, substituted phenyl, phenyl-lower alkyl, hydroxy-lower alkyl, lower acyloxy-lower alkyl, hydroxy, amino, lower alkylideneamino, cycloalkylideneamino, benzylideneamino and R4 is selected from hydrogen, lower alkyl, lower alkenyl, cycloalkyl, phenyl, substituted phenyl, phenyl-lower alkyl, hydroxy-lower alkyl, lower acyloxy-lower alkyl, or R3 and R4 taken together with the nitrogen atom may also form a 5- to 7-membered hetero ring which may contain one other hetero atom selected from N, O and S. The compounds have antiinflammatory activity.

Inventors

  • 👤 Giorgio Tarzia

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 17:52
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/30; C07D263/34

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 5 words
5-Carbamoyl-4-methyl-2-phenyloxazole, 4-carbamoyl-5-methyl-2-phenyloxazole, 4-cyclohexylcarbamoyl-5-methyl-2-(p-tolyl)oxazole or 4-carbamoyl-2-(o-fluorophenyl)-5-methyloxazole.
Claim 2
Dependent Claim 5 words
5-Carbamoyl-4-methyl-2-phenyloxazole, 4-carbamoyl-5-methyl-2-phenyloxazole, 4-cyclohexylcarbamoyl-5-methyl-2-(p-tolyl)oxazole or 4-carbamoyl-2-(o-fluorophenyl)-5-methyloxazole.
Claim 3
Dependent Claim 8 words
The compound of claim 1 which is 5-carbamoyl-4-methyl-2-phenyloxazole.
Claim 4
Dependent Claim 8 words
The compound of claim 1 which is 4-carbamoyl-5-methyl-2-phenyloxazole.
Claim 5
Dependent Claim 8 words
The compound of claim 1 which is 4-cyclohexylcarbamoyl-5-methyl-2-(p-tolyl)oxazole.
Claim 6
Dependent Claim 8 words
The compound of claim 1 which is 4-carbamoyl-2-(o-fluorophenyl)-5-methyloxazole.

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) 1981-02-06 1981-08-08 1982-02-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-02-06 1985-08-08 1986-02-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-02-06 1989-08-08 1990-02-07 $7700.00 Window Closed / Lapsed

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