US3719669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amino(or amido)-phenyl-alkyl-benzazepine analgesics and narcotic antagonists
Assignee: Pennwalt Corp
•
Filing: 1972-03-27
•
Granted: 1973-03-06
•
Expires: 1992-03-27
Abstract
Abstract Compounds of the general formula: D R A W I N G
Inventors
- 👤 B Shetty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:42
CPC Classifications
C; C07; C07D; C07D223/00; C07D223/14; C07D223/16
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
5 words
A compound of the formula:
Claim 2
Dependent Claim
5 words
A compound of the formula:
Claim 3
Dependent Claim
21 words
The compound of claim 1 wherein R is p-aminophenethyl; R1 is methyl and each of R2, R3 and R4 is hydrogen.
Claim 4
Dependent Claim
9 words
The compound of claim 2 which is (+)-3-(p-aminophenethyl)-2-methyl-1,2,4,5-tetrahydro-3H,3-benzazepine dihydrochloride.
Claim 5
Dependent Claim
9 words
The compound of claim 2 which is (-)-3-(p-aminophenethyl)-2-methyl-1,2,4,5-tetrahydro-3H,3-benzazepine dihydrochloride.
Claim 6
Dependent Claim
23 words
The compound of claim 1 wherein R is p-aminophenethyl; R1 is methyl; R3 is 7-hydroxy, and each of R2 and R4 is hydrogen.
Claim 7
Dependent Claim
23 words
The compound of claim 1 wherein R is p-aminophenethyl; R1 is methyl; R4 is 8-hydroxy, and each of R2 and R3 is hydrogen.
Claim 8
Dependent Claim
23 words
The compound of claim 1 wherein R is p-aminophenethyl; R1 is methyl; R3 is 7-methoxy, and each of R2 and R4 is hydrogen.
Claim 9
Dependent Claim
23 words
The compound of claim 1 wherein R is p-aminophenethyl; R1 is methyl; R4 is 8-methoxy, and each of R2 and R3 is hydrogen.
Claim 10
Dependent Claim
9 words
The compound of claim 8 which is (-)-3-(p-aminophenethyl)-8-methoxy-2-methyl-1,2,4,5-tetrahydro-3H,3 -benzazepine.
Claim 11
Dependent Claim
9 words
The compound of claim 8 which is (+)-3-(p-aminophenethyl)-8-methoxy-2-methyl-1,2,4,5-tetrahydro-3H,3 -benzazepine.
Claim 12
Dependent Claim
21 words
The compound of claim 1 wherein R is p-aminophenethyl; each of R1, R2 and R4 is hydrogen, and R3 is 7-methoxy.
Claim 13
Dependent Claim
10 words
The compound of claim 11 which is 3-(para-amino phenyl-ethyl)-7-methoxy-1,2,4,5-tetrahydro-3H,3-benzazepine dihydrochloride.
Claim 14
Dependent Claim
21 words
The compound of claim 1 wherein R is p-aminophenethyl; each of R1, R2 and R4 is hydrogen, and R3 is 7-hydroxy.
Claim 15
Dependent Claim
10 words
The compound of claim 1 which is 3-(2-p-aminophenyl-1-methyl-ethyl)-7-methoxy-1,2,4,5-tetrahydro-3H,3 -benzazepine dihydrochloride.
Claim 16
Dependent Claim
19 words
The compound of claim 1 wherein R is p-aminophenethyl and each of R1, R2, R3 and R4 is hydrogen.
Claim 17
Dependent Claim
8 words
The compound of claim 1 which is 3-(p-acetamidophenethyl)-1-,2,4,5-tetrahydro-3H,3-benzazepine.
Claim 18
Dependent Claim
21 words
The compound of claim 1 wherein R is p-acetamidophenethyl; each of R1, R2 and R4 is hydrogen, and R3 is 7-hydroxy.
Claim 19
Dependent Claim
21 words
The compound of claim 1 wherein R is p-acetamidophenethyl; each of R1, R2 and R4 is hydrogen, and R3 is 7-methoxy.
Claim 20
Dependent Claim
9 words
The compound of claim 18 which is 7-methoxy-3-(p-acetamidophenethyl)-1,2,4,5-tetrahydro-3H,3-benzazepine hydrochloride.
Claim 21
Dependent Claim
23 words
The compound of claim 1 wherein R is p-acetamidophenethyl; R1 is methyl; each of R2 and R3 is hydrogen, and R4 is 8-methoxy.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |