US4140693A
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Substituted 2,3-dihydro-1,2,4-triazolo [4,3-b][1,2]benzisothiazol-3-amine, 5,5, dioxides
Assignee: ER Squibb and Sons LLC
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Filing: 1978-02-03
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Granted: 1979-02-20
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Expires: 1998-02-03
Abstract
Abstract 2,3-Dihydro-1,2,4-triazolo[4,3-b][1,2]benzisothiazol-3-amine, 5,5-dioxides having the formula ##STR1## and salts thereof are new compounds which are useful as anti-inflammatory agents.
Inventors
- 👤 Peter C. Wade
- 👤 B. Richard Vogt
- 👤 Thomas P. Kissick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:51
CPC Classifications
C; C07; C07D; C07D275/00; C07D275/04; C07D275/06; C07D513/00; C07D513/02; C07D513/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
78 words
A compound of the formula ##STR44## and physiologically acceptable acid addition salts thereof, wherein X is hydrogen, halogen, lower alkyl, lower alkoxy or nitro; Y is hydrogen, lower alkoxy or halogen, X being the same as Y when Y is other than hydrogen; R is hydrogen, lower alkanoyl, benzoyl or substituted benzoyl wherein the benzoyl bears a halogen, lower alkyl, lower alkoxy or nitro group on the phenyl ring; R 1 and R 2 each is lower alkyl.
Claim 2
Dependent Claim
78 words
A compound of the formula ##STR44## and physiologically acceptable acid addition salts thereof, wherein X is hydrogen, halogen, lower alkyl, lower alkoxy or nitro; Y is hydrogen, lower alkoxy or halogen, X being the same as Y when Y is other than hydrogen; R is hydrogen, lower alkanoyl, benzoyl or substituted benzoyl wherein the benzoyl bears a halogen, lower alkyl, lower alkoxy or nitro group on the phenyl ring; R 1 and R 2 each is lower alkyl.
Claim 3
Dependent Claim
13 words
A compound as in claim 1 wherein X and Y each is hydrogen.
Claim 4
Dependent Claim
10 words
A compound as in claim 1 wherein R is hydrogen.
Claim 5
Dependent Claim
11 words
A compound as in claim 1 wherein R is lower alkanoyl.
Claim 6
Dependent Claim
21 words
A compound as in claim 1 wherein R is ##STR45## wherein Z is hydrogen, halogen, lower alkyl, lower alkoxy or nitro.
Claim 7
Dependent Claim
10 words
A compound as in claim 1 wherein R is benzoyl.
Claim 8
Dependent Claim
16 words
A compound as in claim 1 wherein R 1 and R 2 each is lower alkyl.
Claim 9
Dependent Claim
19 words
A compound as in claim 2 wherein R is hydrogen and R 1 and R 2 each is methyl.
Claim 10
Dependent Claim
19 words
A compound as in claim 2 wherein R is benzoyl and R 1 and R 2 each is methyl.
Claim 11
Dependent Claim
19 words
A compound as in claim 2 wherein R is acetyl and R 1 and R 2 each is methyl.
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) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |