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US4010158A
Expired / Lapsed
US
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1-(2'-Ethynyl-phenoxy)-2-hydroxy-3-butylamino-propanes and salts
Assignee: Boehringer Ingelheim GmbH
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Filing: 1973-01-18
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Granted: 1977-03-01
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Expires: 1993-01-18
Abstract
Abstract Compounds of the formula <IMAGE> wherein R is secondary butyl or tertiary butyl, and their non-toxic, pharmacologically acceptable acid addition salts; the compounds as well as their salts are useful as beta -adrenergic receptor blocking agents and hypotensives.
Inventors
- 👤 Herbert Koppe
- 👤 Karl Zeile
- 👤 Werner Kummer
- 👤 Helmut Stahle
- 👤 Albrecht Engelhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:44
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/13; A61K31/135
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
23 words
A compound of the formula ##STR6## wherein R is secondary butyl or tertiary butyl, or a non-toxic, pharmacologically acceptable acid addition salt thereof.
Claim 2
Dependent Claim
23 words
A compound of the formula ##STR6## wherein R is secondary butyl or tertiary butyl, or a non-toxic, pharmacologically acceptable acid addition salt thereof.
Claim 3
Dependent Claim
17 words
A compound of claim 1, which is 1-(2'-ethynyl-phenoxy)-2-hydroxy-3-tert.butylamino-propane, or a non-toxic, pharmacologically acceptable acid addition salt thereof.
Claim 4
Dependent Claim
17 words
A compound of claim 1, which is 1-(2'-ethynyl-phenox)-2-hydroxy-3-sec.butylamino-propane, or a non-toxic, pharmacologically acceptable acid addition salt thereof.
References Cited (Backward Citations)
US3203992A
Cited
US3590084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |