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US3692779A Expired / Lapsed US ⏱️ 0.0 years remaining

7-{8 n-(substituted-imidoyl)aminoacetamide{9 cephalosporanic acids and derivatives thereof

Assignee: Bristol Myers Co
•
Filing: 1970-08-12
•
Granted: 1972-09-19
•
Expires: 1990-08-12
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Abstract

Abstract 7-(N-(substituted-imidoyl)aminoacetamido)cephalosporanic acids and their salts and the corresponding betaines and desacetoxy derivatives are valuable as antibacterial agents, nutritional supplements in animal feeds, therapeutic agents in poultry and animals, including man, and are especially useful in the treatment of infectious diseases caused by Gram-positive and Gram-negative bacteria. 7-(N(Phenylacetimidoyl)aminoacetamido)cephalosporanic acid, a preferred embodiment of the invention, is prepared for example, by Raney nickel hydrogenation (50 p.s.i., R.T.) of an aqueous solution of sodium 7-(3-benzyl-1,2,4-oxadiazole-5-one-4acetamido)cephalosporanate which is prepared in turn by reaction of 7-aminocephalosporanic acid with 3-benzyl-1,2,4-oxadiazole-5one-4-acetyl chloride.

Inventors

  • 👤 Charles Truman Holdrege

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 05:04
CPC Classifications
C; C07; C07D; C07D271/00; C07D271/02; C07D271/06; C07D271/07; C07C; C07C259/00; C07C259/12; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/68; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/24; C07D333/26; C07D333/38; C07D501/00; C07D501/14; C07D501/16; C07D501/20

Claims Analysis

Total Claims: 20
Claim 1
Independent Claim 15 words
A compound of claim 1 wherein Z is phenyl, benzyl, thenyl, thienyl, furyl or (lower)alkyl.
Claim 2
Dependent Claim 14 words
A compound of claim 1 wherein Z is phenyl, benzyl, p-chlorobenzyl, 2-thenyl or 3-thenyl.
Claim 3
Dependent Claim 20 words
A compound of claim 1 wherein Z has the structure wherein R is hydrogen, hydroxy, amino, methyl, methoxy or chloro.
Claim 4
Dependent Claim 9 words
A compound of claim 4 wherein A is hydrogen.
Claim 5
Dependent Claim 9 words
A compound of claim 4 wherein A is acetoxy.
Claim 6
Dependent Claim 9 words
A compound of claim 4 wherein A is pyridinium.
Claim 7
Dependent Claim 9 words
A compound of claim 4 wherein A is 2-(5-methyl-1,3,4-thiadiazolyl)thio.
Claim 8
Dependent Claim 5 words
The compound having The formula
Claim 9
Dependent Claim 11 words
A nontoxic, pharmaceutically acceptable salt of the compound of claim 9.
Claim 10
Dependent Claim 9 words
The sodium salt of the compound of claim 9.
Claim 11
Dependent Claim 9 words
The potassium salt of the compound of claim 9.
Claim 12
Dependent Claim 8 words
The hydrochloride of the compound of claim 9.
Claim 13
Dependent Claim 9 words
The zwitterion form of the compound of claim 9.
Claim 14
Dependent Claim 5 words
The compound having the formula
Claim 15
Dependent Claim 5 words
The compound having the formula
Claim 16
Dependent Claim 5 words
The compound having the formula
Claim 17
Dependent Claim 8 words
A compound of claim 1 having the formula
Claim 18
Dependent Claim 8 words
A compound of claim 1 having the formula
Claim 19
Dependent Claim 8 words
A compound of claim 1 having the formula
Claim 20
Dependent Claim 8 words
A compound of claim 1 having the formula

References Cited (Backward Citations)

US3454557A Cited
US3479339A Cited
US3481922A Cited
US3483188A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-09-19 1976-03-20 1976-09-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-09-19 1980-03-20 1980-09-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-09-19 1984-03-20 1984-09-19 $7700.00 Window Closed / Lapsed

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