US4935444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esterified ephedrine drivatives with prolonged antiulcer activity
Assignee: Texcontour Ets
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Filing: 1988-10-06
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Granted: 1990-06-19
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Expires: 2008-10-06
Abstract
Abstract Esterified ephedrine derivatives with prolonged antiulcer activity and low toxicity, having the following general formula: ##STR1## in which R is: ##STR2## The invention also describes a process for preparing derivatives of formula (I) and compositions containing them as active principle.
Inventors
- 👤 Federico Butelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:57
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/79; C07D213/80; A; A61; A61P; A61P1/00; A61P1/04; C07D233/00; C07D233/54; C07D233/64; C07D333/00; C07D333/02; C07D333/04; C07D333/26; C07D333/38
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
42 words
Esterified ephedrine derivatives of general formula: ##STR10## wherein R is selected from the group consisting of: C 9 H 19 , C 15 H 31 , CH(NH 2 )--CH 2 --CH 2 --COOH, C(CH 3 ) 3 , pamoic acid radical, ##STR11##
Claim 2
Dependent Claim
42 words
Esterified ephedrine derivatives of general formula: ##STR10## wherein R is selected from the group consisting of: C 9 H 19 , C 15 H 31 , CH(NH 2 )--CH 2 --CH 2 --COOH, C(CH 3 ) 3 , pamoic acid radical, ##STR11##
Claim 3
Dependent Claim
20 words
Pharmaceutical compositions comprising an anti-ulcer effective amount of at least one compound of claim 1 and a therapeutically acceptable carrier.
References Cited (Backward Citations)
US3795709A
Cited
US3911017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-06-18 | 1993-12-18 | 1994-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-18 | 1997-12-18 | 1998-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-18 | 2001-12-18 | 2002-06-19 | $7700.00 | Window Closed / Lapsed |