US3843665A
Expired / Lapsed
US
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Process for preparing substituted indeno,naphtho and cyclohepta pyrazoles
Assignee: Sandoz AG
•
Filing: 1973-04-11
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Granted: 1974-10-22
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Expires: 1993-04-11
Abstract
Abstract Substituted indeno (1,2-c) pyrazoles, naphtho (1,2-c) pyrazoles and benzo (6,7) cyclohepta (1,2-c) pyrazoles e.g., 3-(2,3dimethoxyphenyl)-4H-indeno(1,2-c) pyrazole and 4,5-dihydro-3-(4pyridyl)-2H-naphtho(1,2-c) pyrazole, are useful as non-estrogenic and anti-fertility agents and antihypertensive gents and are prepared by treating substituted indanones, Alpha -tetralones and benzosuberones with alkylphenylsulfonyl hydrazine.
Inventors
- 👤 R Coombs
- 👤 W Houlihan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:09
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/54
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
9 words
A PROCESS FOR PREPARING A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
9 words
A PROCESS FOR PREPARING A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
20 words
The process according to claim 1 in which the inert solvent is lower alkanol having 1 to 4 carbon atoms.
Claim 4
Dependent Claim
10 words
The process of claim 1, in which n is 2.
Claim 5
Dependent Claim
10 words
the process of claim 1 in which n is 3.
Claim 6
Dependent Claim
10 words
The process of claim 1 in which Ar is pyridyl.
Claim 7
Dependent Claim
10 words
The process of claim 5 in which n is 2.
Claim 8
Dependent Claim
10 words
The process of claim 5 in which n is 3.
Claim 9
Dependent Claim
9 words
The process of claim 1 in which Ar is
Claim 10
Dependent Claim
10 words
The compound of claim 8 in which n is 2.
Claim 11
Dependent Claim
13 words
The process according to claim 1 in which the product is 4, 5-dihydro-3-(4-pyridyl)-2H-naphtho(1,2-c)pyrazole.
Claim 12
Dependent Claim
12 words
The process according to claim 1 in which the product is 3-(2,3-dimethoxyphenyl)-4H-indeno(1,2-c)pyrazole.
Claim 13
Dependent Claim
13 words
The process according to claim 1 in which the product is 4, 5-dihydro-3-(2-pyridyl)-2H-naphtho(1,2-c)pyrazole.
Claim 14
Dependent Claim
13 words
The process according to claim 1 in which the product is 4, 5-dihydro-3-(3-pyridyl)-2H-naphtho(1,2-c)pyrazole.
Claim 15
Dependent Claim
13 words
The process according to claim 1 in which the product is 4, 5-dihydro-3-(p-chlorophenyl)-2H-naphtho(1,2-c)pyrazole.
Claim 16
Dependent Claim
13 words
The process according to claim 1 in which the product is 4, 5-dihydro-3-(p-methoxyphenyl)-2H-naphtho(1,2-c)pyrazole.
Claim 17
Dependent Claim
12 words
The process according to claim 1 in which the product is 3-(4-pyridyl)-2h-benzo(6,7)cyclohepta(1,2-c)pyrazole.
Claim 18
Dependent Claim
13 words
The process according to claim 1 in which the product is 4, 5-dihydro-3-phenyl-2H-naphtho(1,2-c)pyrazole.
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) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |