US3723476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-hydrocarbylamino-3-(ortho-furylmethyloxyphenoxy or tetrahydrofurylmethyloxy-phenoxy)-2-propanol compounds
Assignee: Tanabe Pharma Corp
•
Filing: 1970-05-15
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Granted: 1973-03-27
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Expires: 1990-05-15
Abstract
Abstract Phenoxy-aminopropanol derivatives of the formula WHEREIN R1 is furylmethyl, thienylmethyl, tetrahydrofurylmethyl, pyridylmethyl, or a group of the formula R-X-A-, wherein R is C1 4 alkyl, C1 4 alkenyl, phenyl or benzyl, X is -O- or -S-, and A is C1 4 alkylene or -CH2C*CCH2-; -N(R2)(R3) is C1 4 alkylamino, dialkylamino (each alkyl being at most four carbon atoms), cyclohexylamino, piperidino, morpholino or 4-methyl-1piperazinyl; and R4 is H, CH3 or Cl, and pharmaceutically acceptable acid addition salts thereof, are useful as Beta adrenergic blocking agents.
Inventors
- 👤 M Nakanishi
- 👤 T Muro
- 👤 H Imamura
- 👤 N Yamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:47
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/28; C07D213/30; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/40; C07D307/42; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/16
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
7 words
The compound of claim 1: 1-isopropylamino-3-(o-furfuryloxyphenoxy)-2-propanol fumarate.
Claim 2
Dependent Claim
9 words
The compound of claim 1: 1-tert-butylamino-3-(o-furfuryloxyphenoxy)-2-propanol fumarate 1/2 hydrate.
Claim 3
Dependent Claim
6 words
The compound of claim 1: 1-cyclohexylamino-3-(o-furfuryl-oxyphenoxy)-2-propanol.
Claim 4
Dependent Claim
7 words
The compound of claim 1: 1-isopropylamino-3-(o-tetrahydrofurfuryloxyphenoxy)-2-propanol fumarate.
Claim 5
Dependent Claim
8 words
The compound of claim 1: 1-tert-butylamino-3-(o-tetrahydrofurfuryloxyphenoxy)-2-propanol 1/2 fumarate.
Claim 6
Dependent Claim
9 words
A compound of claim 1 having the name 1-isopropylamino-3-(o-tetrahydrofurfuryloxyphenoxy)-2-propanol.
Claim 7
Dependent Claim
9 words
A compound of claim 1 having the name 1-isopropylamino-3-(o-furfuryloxyphenoxy)-2-propanol.
Claim 8
Dependent Claim
9 words
A compound of claim 1 having the name 1-tert-butylamino-3-(o-furfuryloxyphenoxy)-2-propanol.
Claim 9
Dependent Claim
9 words
A compound of claim 1 having the name 1-tert-butylamino-3-(o-tetrahydrofurfuryloxyphenoxy)-2-propanol.
References Cited (Backward Citations)
US3203992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |