US4252984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenol ethers
Assignee: Synthelabo SA
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Filing: 1976-10-20
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Granted: 1981-02-24
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Expires: 1996-10-20
Abstract
Abstract The invention provides phenol ethers of the formula: <IMAGE> wherein R is branched C3-4 alkyl, C3-4 cycloalkyl, branched cyano(C3-4 alkyl), phenyl(C2-3 alkyl), halophenyl(C2-3 alkyl), (C1-4 alkoxy)phenyl(C2-4 alkyl), or (C1-4 acyl)amino(C1-4 alkyl), alk is C1-4 alkyl substituted by a 3 to 6 membered cycloalkyl group, X is -O-, -S- or -SO2-; and R1 is -C1-4 alkyl- or -C1-4 alkoxy-, in their racemic and optically active forms, and their addition salts with pharmaceutically acceptable acids. These compounds are useful in therapy as beta -adrenergic blocking agents. Intermediates are also provided.
Inventors
- 👤 Philippe M. J. Manoury
- 👤 Icilio A. G. Cavero
- 👤 Henry Najer
- 👤 Don Pierre R. L. Giudicelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:57
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24; A; A61; A61P; A61P25/00; A61P25/02; A61P9/00; A61P9/06; A61P9/08; A61P9/10; C07C; C07C309/00; C07C317/00; C07C323/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
1-[4-(2-Cyclopropylmethoxy-ethyl)-phenoxy]-3-isopropylaminopropan-2-ol or a pharmaceutically acceptable acid addition salt thereof.
Claim 2
Dependent Claim
9 words
1-[4-(2-Cyclopropylmethoxy-ethyl)-phenoxy]-3-isopropylaminopropan-2-ol or a pharmaceutically acceptable acid addition salt thereof.
References Cited (Backward Citations)
US3888898A
Cited
FR5662M
Cited
US3723476A
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FR2044806A1
Cited
US3674840A
Cited
US3712890A
Cited
FR2081523A1
Cited
US3873600A
Cited
US4085136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-24 | 1984-08-25 | 1985-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-24 | 1988-08-25 | 1989-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-24 | 1992-08-25 | 1993-02-24 | $7700.00 | Window Closed / Lapsed |