US4188323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatives of 2-oxazolydone and methods for preparing the same
Assignee: A Menarini SAS
•
Filing: 1978-05-11
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Granted: 1980-02-12
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Expires: 1998-05-11
Abstract
Abstract A compound having pharmacological properties comprising the structural formula <IMAGE> (I) wherein R is selected from the isopropyl, n-octyl, n-butyl or isobutyl groups; R1 is selected from the 1-naphthyloxymethyl, (2-allylphenoxy)-methyl, 4-nitrophenyl, {2-[(tetrahydrofurfuryl)oxy-]-phenoxy}-methyl, [4-(2-methoxyethyl)phenoxy]methyl, 4-isopropylthiophenyl, 4-acetaminophenoxymethyl groups; and R2 represents a hydrogen atom or a methyl group. A method for synthetizing the compound is also disclosed comprising the cyclization of aminoalcohol or halogenurethane.
Inventors
- 👤 Vittorio Pestellini
- 👤 Mario Ghelardoni
- 👤 Claudio Bianchini
- 👤 Piero del Soldato
- 👤 Giovanna Volterra
- 👤 Alberto Meli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:18
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/16; C07D263/18; C07D263/20; A; A61; A61P; A61P25/00; A61P25/02; A61P9/00; A61P9/08; C07D263/24
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
13 words
A member selected from the group consisting of 3-isopropyl-5-(1-naphthyloxymethyl)-2-oxazolydone; 3-isopropyl-5-(4-acetaminophenoxymethyl)-2-oxazolydone; 3-isobutyl-5-{2[(tetrahydrofurfuryl)oxy]phenoxy}methyl-2-oxazolydone; 3-n-octyl-4-methyl-5-(4-isopropylthiophenyl)-2-oxazolydone; 3-isopropyl-5-(4-nitrophenyl)-2-oxazolydone.
Claim 2
Dependent Claim
13 words
A member selected from the group consisting of 3-isopropyl-5-(1-naphthyloxymethyl)-2-oxazolydone; 3-isopropyl-5-(4-acetaminophenoxymethyl)-2-oxazolydone; 3-isobutyl-5-{2[(tetrahydrofurfuryl)oxy]phenoxy}methyl-2-oxazolydone; 3-n-octyl-4-methyl-5-(4-isopropylthiophenyl)-2-oxazolydone; 3-isopropyl-5-(4-nitrophenyl)-2-oxazolydone.
Claim 3
Dependent Claim
1 words
3-isopropyl-5-(-1-naphthyloxymethyl)-2-oxazolydone.
Claim 4
Dependent Claim
1 words
3-isopropyl-5-(-1-naphthyloxymethyl)-2-oxazolydone.
Claim 5
Dependent Claim
1 words
3-isopropyl-5-(4-acetaminophenoxymethyl)-2-oxazolydone.
Claim 6
Dependent Claim
1 words
3-isopropyl-5-(4-acetaminophenoxymethyl)-2-oxazolydone.
Claim 7
Dependent Claim
2 words
3-isobutyl-5-{2[(tetrahydrofurfuryl)]oxy phenoxy}methyl-2-oxazolydone.
Claim 8
Dependent Claim
2 words
3-isobutyl-5-{2[(tetrahydrofurfuryl)]oxy phenoxy}methyl-2-oxazolydone.
Claim 9
Dependent Claim
1 words
3-n-octyl-4-methyl-5-(4-isopropylthiophenyl)-2-oxazolydone.
Claim 10
Dependent Claim
1 words
3-n-octyl-4-methyl-5-(4-isopropylthiophenyl)-2-oxazolydone.
Claim 11
Dependent Claim
1 words
3-isopropyl-5-(4-nitrophenyl)-2-oxazolydone.
Claim 12
Dependent Claim
1 words
3-isopropyl-5-(4-nitrophenyl)-2-oxazolydone.
References Cited (Backward Citations)
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US3542872A
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US3742023A
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US3331850A
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US3455946A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-11 | 1983-08-13 | 1984-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-11 | 1987-08-13 | 1988-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-11 | 1991-08-13 | 1992-02-12 | $7700.00 | Window Closed / Lapsed |