Patent US3725431A successfully refreshed from Google Patents.
US3725431A
Expired / Lapsed
US
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1-aralkyl-3-aminoindazoles
Assignee: Novartis Corp
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Filing: 1970-09-23
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Granted: 1973-04-03
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Expires: 1990-09-23
Abstract
Abstract R1 aralkyl R2 H, alkyl, free, esterified or etherified hydroxyalkyl R3 aza-(alkyl, cycloalkyl-alkyl, aralkyl, alkanoyl, cycloalkyl-alkanoyl or aralkanoyl) AND SALTS THEREOF ARE ANTIINFLAMMATORY AGENTS. 1-Aralkyl-3-aminoindazoles, e.g. those of the formula
Inventors
- 👤 H Gschwend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:02
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/54; C07D231/56
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
56 words
A compound as claimed in claim 1, in which formula R4 is benzyl, 4-(methyl or chloro)-benzyl, R5 is hydrogen or methyl, Am is methylamino, ethylamino, dimethylamino, diethylamino, pyrrolidino, piperidino, piperazino, 4-methylpiperazino or 4-ethylpiperazino, alk is methylene, 1,1- or 1,2-ethylene, R7 is oxo or 2 hydrogens and R6 is hydrogen, or therapeutically useful acid addition salts thereof.
Claim 2
Dependent Claim
39 words
A compound as claimed in claim 1, in which formula R4 is benzyl, R5 is hydrogen, Am is dimethylamino or pyrrolidino, alk is 1,2-ethylene, R7 is 2 hydrogens and R6 is hydrogen, or therapeutically useful acid addition salts thereof.
Claim 3
Dependent Claim
11 words
A compound as claimed in claim 1 and being the 1-benzyl-3-(3-pyrrolidinopropylamino)-indazole.
Claim 4
Dependent Claim
13 words
A therapeutically useful acid addition salt of the compound claimed in claim 4.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |