US3897420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-Aminoalkyl-7-substituted-3,3a,4,5,6,7-hexahydro-3-substituted-2H-pyrazolo(4,3-c)pyridines
Assignee: ER Squibb and Sons LLC
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Filing: 1974-06-17
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Granted: 1975-07-29
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Expires: 1994-06-17
Abstract
Abstract 2-Aminoalkyl-7-substituted-3,3a,4,5,6,7-hexahydro-3-substituted2H -pyrazolo(4,3-c)pyridines and their N-oxides and the acid addition salts thereof are reported. In addition, methods for preparing said compounds, pharmaceutical compositions containing said compounds and methods for using said compositions as central nervous system depressants are disclosed.
Inventors
- 👤 John Krapcho
- 👤 Chester F Turk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:54
CPC Classifications
C; C09; C09B; C09B23/00
Claims Analysis
Total Claims: 7
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
30 words
The compounds of claim 1 wherein R and R3 are phenyl, X is hydrogen, R1 is hydrogen or lower alkyl and R2 is dimethylaminopropyl and N-oxides and acid-addition salts thereof.
Claim 4
Dependent Claim
11 words
The compound of claim 2 having the name 7-benzylidene-2-(3-(dimethylamino)propyl)-3,3a,4,5,6,7-hexahydro-5-methyl-3 -phenyl-2H-pyrazolo(4,3-c)pyridine, dihydrochloride.
Claim 5
Dependent Claim
10 words
The compound of claim 2 having the name 7-benzylidene-2-(3-(dimethylamino)propyl)-3,3a,4,5,6,7-hexahydro-3-phenyl-2H-pyrazolo(4,3-c)pyridine, dihydrochloride.
Claim 6
Dependent Claim
11 words
The compound of claim 1 having the name 7-benzylidene-2-(2-(dimethylamino)ethyl)-3,3a,4,5,6,7-hexahydro-5-methyl-3 -phenyl-2H-pyrazolo(4,3-c)pyridine, dihydrochloride.
Claim 7
Dependent Claim
11 words
The compound of claim 1 having the name 7-benzylidene-3,3a,4, 5,6,7-hexahydro-5-methyl-2-(2-(4-morpholinyl)ethyl)-3-phenyl-2H-pyrazolo(4,3-c)pyridine, dihydrochloride.
References Cited (Backward Citations)
US3669950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |