US4482722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ester of metronidazole with N,N-dimethylglycine and acid addition salt thereof
Assignee: Xellia Pharmaceuticals ApS
•
Filing: 1983-06-08
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Granted: 1984-11-13
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Expires: 2003-06-08
Abstract
Abstract N,N-dimethylglycine ester of metronidazole, acid addition salt thereof and method of preparing such ester or acid addition salt. The novel compounds exhibit favorable solubility in water and are especially useful for the parenteral treatment of certain anaerobic infections.
Inventors
- 👤 Pia Thorbek
- 👤 Hans Bundgaard
- 👤 Claus Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:59
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/91; C07D233/92; C07D233/94
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
13 words
A metronidazole ester having the formula I: ##STR6## and acid addition salts thereof.
Claim 2
Dependent Claim
13 words
A metronidazole ester having the formula I: ##STR6## and acid addition salts thereof.
Claim 3
Dependent Claim
4 words
Metronidazole N,N-dimethyl glycinate hydrochloride.
Claim 4
Dependent Claim
4 words
Metronidazole N,N-dimethyl glycinate hydrochloride.
References Cited (Backward Citations)
US2944061A
Cited
US3803165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-13 | 1988-05-14 | 1988-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-13 | 1992-05-14 | 1992-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-13 | 1996-05-14 | 1996-11-13 | $7700.00 | Window Closed / Lapsed |