US3852291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heterocyclic derivatives of phenoxypropanolamines
Assignee: Pfizer Inc
•
Filing: 1972-08-02
•
Granted: 1974-12-03
•
Expires: 1992-08-02
Abstract
Abstract Novel propanolamine derivatives useful in the treatment of angina pectoris and pharmaceutical compositions thereof.
Inventors
- 👤 J Augstein
- 👤 D Cox
- 👤 A Ham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:53
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/52; C07D239/54; C07D233/00; C07D233/04; C07D233/28; C07D233/30; C07D233/32; C07D233/36; C07D233/54; C07D233/66; C07D233/84; C07D263/00; C07D263/02; C07D263/04; C07D263/06
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA:
Claim 3
Dependent Claim
12 words
A compound as claimed in claim 1 in which R1 is hydrogen.
Claim 4
Dependent Claim
13 words
A compound as claimed in claim 1 in which R1 is lower alkanoylamino.
Claim 5
Dependent Claim
12 words
A compound as claimed in claim 1 in which R5 is hydrogen.
Claim 6
Dependent Claim
12 words
A compound as claimed in claim 1 in which R5 is methyl.
Claim 7
Dependent Claim
12 words
A compound as claimed in claim 1 in which n is 1.
Claim 8
Dependent Claim
12 words
A compound as claimed in claim 3 in which R1 is acetamido.
Claim 9
Dependent Claim
14 words
A compound as claimed in claim 1 in which R2 is hydrogen or 2-methyl.
Claim 10
Dependent Claim
14 words
A compound as claimed in claim 7 in which R2 is hydrogen or 2-methyl.
Claim 11
Dependent Claim
19 words
A compound as claimed in claim 1 in which R3 is 1,2,3-4-tetrahydro-2,4-dioxo-pyrimidin-1-yl substituted at the 5-position with lower alkyl.
Claim 12
Dependent Claim
13 words
A compound as claimed in claim 10 in which lower alkyl is methyl.
Claim 13
Dependent Claim
8 words
1-(2-(3- 4-acetamido-2-methylphenoxy)-2-hydroxypropylamino)-ethyl)thymine and its pharmaceutically-acceptable acid addition salts.
Claim 14
Dependent Claim
8 words
1-(2-(3- 4-acetamido-2-methylphenoxy)-2-hydroxypropylamino)-ethyl)thymine and its pharmaceutically-acceptable acid addition salts.
Claim 15
Dependent Claim
9 words
1-(2-(3- 2-methylphenoxy -2-hydroxypropylamino)ethyl)thymine and its pharmaceutically-acceptable acid addition salts.
Claim 16
Dependent Claim
9 words
1-(2-(3- 2-methylphenoxy -2-hydroxypropylamino)ethyl)thymine and its pharmaceutically-acceptable acid addition salts.
Claim 17
Dependent Claim
7 words
1-(2-(3-phenoxy-2-hydroxypropylamino)ethyl)thymine and its pharmaceutically-acceptable acid addition salts.
Claim 18
Dependent Claim
7 words
1-(2-(3-phenoxy-2-hydroxypropylamino)ethyl)thymine and its pharmaceutically-acceptable acid addition salts.
Claim 19
Dependent Claim
10 words
5-Ethyl-1-(2-(3- 2-methylphenoxy -2-hydroxypropylamino)ethyl) -uracil and its pharmaceutically-acceptable acid addition salts.
Claim 20
Dependent Claim
10 words
5-Ethyl-1-(2-(3- 2-methylphenoxy -2-hydroxypropylamino)ethyl) -uracil and its pharmaceutically-acceptable acid addition salts.
Claim 21
Dependent Claim
9 words
5-Isopropyl-1-(2-(3- -2-methylphenoxy -2-hydroxpropylamino)-ethyl)uracil and its pharmaceutically-acceptable acid addition salts.
Claim 22
Dependent Claim
9 words
5-Isopropyl-1-(2-(3- -2-methylphenoxy -2-hydroxpropylamino)-ethyl)uracil and its pharmaceutically-acceptable acid addition salts.
Claim 23
Dependent Claim
8 words
5-Ethyl-1-(2-(3-(4-acetamido-2-methylphenoxy -2-hydroxypropylamino)ethyl)uracil and its pharmaceutically-acceptable acid addition salts.
Claim 24
Dependent Claim
8 words
5-Ethyl-1-(2-(3-(4-acetamido-2-methylphenoxy -2-hydroxypropylamino)ethyl)uracil and its pharmaceutically-acceptable acid addition salts.
Claim 25
Dependent Claim
9 words
5-Isopropyl-1-(2-(3- 4-Acetamido-2-methylphenoxy -2hydroxy-propylamino)ethyl)uracil and its pharmaceutically-acceptable acid addition salts.
Claim 26
Dependent Claim
9 words
5-Isopropyl-1-(2-(3- 4-Acetamido-2-methylphenoxy -2hydroxy-propylamino)ethyl)uracil and its pharmaceutically-acceptable acid addition salts.
Claim 27
Dependent Claim
9 words
1-(2-(3- 2-methylphenoxy -2-hydroxypropylamino)propyl)thymine and its pharmaceutically-acceptable acid addition salts.
Claim 28
Dependent Claim
9 words
1-(2-(3- 2-methylphenoxy -2-hydroxypropylamino)propyl)thymine and its pharmaceutically-acceptable acid addition salts.
Claim 29
Dependent Claim
9 words
1-(2-(3- 4-acetamido-2-methylphenoxy 2-hydroxypropylamino)-propyl)thymine and its pharmaceutically-acceptable acid addition salts.
Claim 30
Dependent Claim
9 words
1-(2-(3- 4-acetamido-2-methylphenoxy 2-hydroxypropylamino)-propyl)thymine and its pharmaceutically-acceptable acid addition salts.
References Cited (Backward Citations)
US2883381A
Cited
US3679681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |