US3864390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-formylphenoxy-3-amino-2-propanol derivatives
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1972-06-29
•
Granted: 1975-02-04
•
Expires: 1992-06-29
Abstract
Abstract New 1-o-formylphenoxy-3-amino-2-propanol derivatives, a process for their manufacture and pharmaceutical compositions containing them. The compounds possess Beta -adrenergic blocking activity and are useful as intermediates. Representative of the compounds disclosed is 1-o-formylphenoxy-3-isopropylamino-2-propanol.
Inventors
- 👤 Count David J Le
- 👤 Christopher John Squire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:54
CPC Classifications
C; C07; C07C; C07C47/00; C07C47/52; C07C47/56
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
10 words
AN ALKANOLAMINE DERIVATIVE SELECTED FROM A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
10 words
AN ALKANOLAMINE DERIVATIVE SELECTED FROM A COMPOUND OF THE FORMULA:
Claim 3
Dependent Claim
23 words
The compound 1-o-formylphenoxy-3-isopropylamino-2-propanol or a hydrochloride, hydrobromide, phosphate, sulphate, oxalate, lactate, tartrate, acetate, salicylate, citrate, benzoate, Beta -naphthoate, adipate or 1,1-methylene-bis-(2-hydroxy-3-naphthoate) salt thereof.
Claim 4
Dependent Claim
23 words
The compound 1-o-formylphenoxy-3-isopropylamino-2-propanol or a hydrochloride, hydrobromide, phosphate, sulphate, oxalate, lactate, tartrate, acetate, salicylate, citrate, benzoate, Beta -naphthoate, adipate or 1,1-methylene-bis-(2-hydroxy-3-naphthoate) salt thereof.
Claim 5
Dependent Claim
23 words
The compound 1-o-formylphenoxy-3-t-butylamino-2-propanol or a hydrochloride, hydrobromide, phosphate, sulphate, oxalate, lactate, tartrate, acetate, salicylate, citrate, benzoate, Beta -naphthoate, adipate or 1,1-methylene-bis-(2-hydroxy-3-naphthoate) salt thereof.
Claim 6
Dependent Claim
23 words
The compound 1-o-formylphenoxy-3-t-butylamino-2-propanol or a hydrochloride, hydrobromide, phosphate, sulphate, oxalate, lactate, tartrate, acetate, salicylate, citrate, benzoate, Beta -naphthoate, adipate or 1,1-methylene-bis-(2-hydroxy-3-naphthoate) salt thereof.
References Cited (Backward Citations)
US3501769A
Cited
US3663607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |