Monoamino 2,4,5-trisubstituted oxazoles
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
Claims Analysis
Total Claims: 6References 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 |