Patent US4312874A successfully refreshed from Google Patents.
US4312874A
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Antibacterial compounds, processes for their preparation and compositions containing them
Assignee: Beecham Group PLC
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Filing: 1980-11-06
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Granted: 1982-01-26
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Expires: 2000-11-06
Abstract
Abstract A ketone of formula (II): ##STR1## wherein Y represents ##STR2## and R represents a C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, aralkyl or cycloalkylalkyl group, optionally substituted with halogen, C 1-6 alkyl, C 1-6 alkoxy, hydroxy, carboxy or C 1-6 alkoxy carbonyl, or represents a 5 or 6 membered heterocyclic group containing a nitrogen, oxygen or sulphur atom, has antibacterial and antimycloplasmal activity and is of value in the treatment of bacterial and mycoplasma-induced human and veterinary diseases.
Inventors
- 👤 Norman H. Rogers
- 👤 Steven Coulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:29
CPC Classifications
C; C07; C07F; C07F13/00; A; A61; A61P; A61P31/00; A61P31/04; C07D; C07D309/00; C07D309/02; C07D309/08; C07D309/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
48 words
A compound of the formula (II): ##STR16## wherein Y represents ##STR17## and R represents a C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, aralkyl or cycloalkylalkyl group, optionally substituted with halogen, C 1-6 alkyl, C 1-6 alkoxy, hydroxy, carboxy or C 1-6 alkoxy carbonyl, or pyridyl.
Claim 2
Dependent Claim
48 words
A compound of the formula (II): ##STR16## wherein Y represents ##STR17## and R represents a C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, aralkyl or cycloalkylalkyl group, optionally substituted with halogen, C 1-6 alkyl, C 1-6 alkoxy, hydroxy, carboxy or C 1-6 alkoxy carbonyl, or pyridyl.
Claim 3
Dependent Claim
19 words
A compound according to claim 1 in which R represents a straight or branched chain C 1-10 alkyl group.
Claim 4
Dependent Claim
17 words
A compound according to claim 2 in which R represents a straight chain C 1-6 alkyl group.
Claim 5
Dependent Claim
15 words
A compound according to claim 1 in which R represents a phenyl or benzyl group.
Claim 6
Dependent Claim
27 words
A pharmaceutical or veterinary composition comprising an antibacterially effective amount of a compound according to claim 1 together with a pharmaceutically or veterinary acceptable carrier or excipient.
Claim 7
Dependent Claim
10 words
A composition according to claim 5 in dosage unit form.
Claim 8
Dependent Claim
17 words
A composition according to claim 5 in the form of an animal foodstuff or drinking water supply.
References Cited (Backward Citations)
US4102904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-25 | 1985-07-27 | 1986-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-25 | 1989-07-27 | 1990-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-25 | 1993-07-27 | 1994-01-26 | $7700.00 | Window Closed / Lapsed |