Patent US3839322A successfully refreshed from Google Patents.
US3839322A
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US
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(r)-1-(2-furoyloxy)-3-methylbutyl-pencillin compounds
Assignee: Individual
•
Filing: 1972-01-03
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Granted: 1974-10-01
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Expires: 1992-01-03
Abstract
Abstract Compounds represented by the following formula WHEREIN A is a substituted or unsubstituted heterocyclic radical and T is a C2-C5 alkyl, alkenyl, cycloproplymethyl, cyclobutylmethyl or cyclopentyl group A PROCESS FOR THEIR PREPARATION AND NOVEL INTERMEDIATES THEREFOR ARE DISCLOSED. These compounds are useful antibiotics.
Inventors
- 👤 A Furlenmeier
- 👤 P Quitt
- 👤 K Vogler
- 👤 P Lanz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:35
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; A; A61; A61P; A61P31/00; A61P31/04; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D207/24; C07D207/26; C07D207/273; C07D207/277; C07D207/28; C07D207/30; C07D207/34; C07D213/79; C07D213/89; C07D215/00; C07D215/02; C07D215/16; C07D215/48; C07D215/50; C07D217/00; C07D217/22; C07D217/26; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D233/00; C07D233/54; C07D233/66; C07D233/90; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/52; C07D239/54; C07D239/545; C07D239/557; C07D261/00; C07D261/02; C07D261/06; C07D261/10; C07D261/18; C07D263/00; C07D263/02; C07D263/30; C07D263/34; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/56; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/06; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/68; C07D309/00; C07D309/02; C07D309/08; C07D309/10; C07D309/12; C07D333/00; C07D333/02; C07D333/04; C07D333/26; C07D333/38; C07D499/00; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/55
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
17 words
A compound selected from the group consisting of (R)-1-(2-furoyloxy)-3-methylbutyl-penicillin and pharmaceutically acceptable salts and hydrated forms thereof.
Claim 4
Dependent Claim
17 words
A compound selected from the group consisting of (R)-1-(2-furoyloxy)-3-methylbutyl-penicillin and pharmaceutically acceptable salts and hydrated forms thereof.
References Cited (Backward Citations)
GB1125557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |