US3880846A
Expired / Lapsed
US
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Vinylaminoacetyl cephalosporins
Assignee: ER Squibb and Sons LLC
•
Filing: 1972-12-19
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Granted: 1975-04-29
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Expires: 1992-12-19
Abstract
Abstract New vinylaminoacetylpenicillins and vinylaminoacetyl cephalosporins have the formula A is the 6-aminopenicillanic acid moiety and certain derivatives thereof or the 7-aminocephalosporanic acid moiety and certain derivatives thereof. R1 is -CN or -COR5. R2 is -CN, -COR5, -SO2R6 or -PO(R7)2. R3 is hydrogen, lower alkyl, phenyl, hydroxyphenyl, thienyl, furyl or pyridyl. R5, R6 and R7 each is lower alkoxy or phenyl. These products are useful as antibacterial agents.
Inventors
- 👤 Hermann Breuer
- 👤 Uwe D Treuner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:46
CPC Classifications
C; C07; C07D; C07D499/00
Claims Analysis
Total Claims: 15
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
33 words
A compound as in claim 1 wherein R1 and R2 each is cyano or -COR5, R3 is phenyl; R4 is hydrogen, alkali metal or lower alkanoyloxymethyl; and X is hydrogen or lower alkanoyloxy.
Claim 4
Dependent Claim
13 words
A compound as in claim 1 wherein R1 and R2 each is cyano.
Claim 5
Dependent Claim
13 words
A compound as in claim 1 wherein R1 and R2 each is carbethoxy.
Claim 6
Dependent Claim
23 words
A compound as in claim 1 wherein R1 and R2 each is carbethoxy, R3 is hydrogen, R4 is potassium and X is acetoxy.
Claim 7
Dependent Claim
23 words
A compound as in claim 1 wherein R1 and R2 each is cyano, R3 and R4 each is hydrogen and X is acetoxy.
Claim 8
Dependent Claim
23 words
A compound as in claim 1 wherein R1 is cyano, R2 is carbethoxy, R3 and R4 each is hydrogen and X is acetoxy.
Claim 9
Dependent Claim
23 words
A compound as in claim 1 wherein R1 is cyano, R2 is phenylsulfonyl, R3 and R4 each is hydrogen and X is acetoxy.
Claim 10
Dependent Claim
23 words
A compound as in claim 1 wherein R1 and R2 each is cyano, R3 is phenyl and R4 and X each is hydrogen.
Claim 11
Dependent Claim
23 words
A compound as in claim 1 wherein R1 and R2 each is cyano, R3 is phenyl, R4 is potassium and X is acetoxy.
Claim 12
Dependent Claim
5 words
A compound of the formula
Claim 13
Dependent Claim
5 words
A compound of the formula
Claim 14
Dependent Claim
50 words
A compound as in claim 1 wherein R1 is cyano or -COR5; R2 is cyano, -COR5, -SO2R6 or -PO(R7)2; R3 is hydrogen, phenyl or thienyl; R4 is hydrogen, alkali metal or lower alkanoyloxymethyl; R5 and R7 each is lower alkoxy; R6 is phenyl; and X is hydrogen or lower alkanoyloxy.
Claim 15
Dependent Claim
10 words
A compound as in claim 1 wherein R1 is cyano.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |