PT64720A - Broad-spectrum cephalosporin antibiotics resistant to beta-lactamase - 7-(alpha-(4pethyl-2,3-dioxo-piperazinocarbonylamino)-para-hydroxy- phenylacetamido)-ceph-3-em-4-carboxylic acids - Google Patents

Broad-spectrum cephalosporin antibiotics resistant to beta-lactamase - 7-(alpha-(4pethyl-2,3-dioxo-piperazinocarbonylamino)-para-hydroxy- phenylacetamido)-ceph-3-em-4-carboxylic acids

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Publication number
PT64720A
PT64720A PT6472076A PT6472076A PT64720A PT 64720 A PT64720 A PT 64720A PT 6472076 A PT6472076 A PT 6472076A PT 6472076 A PT6472076 A PT 6472076A PT 64720 A PT64720 A PT 64720A
Authority
PT
Portugal
Prior art keywords
lactamase
cpd
beta
broad
4pethyl
Prior art date
Application number
PT6472076A
Other languages
French (fr)
Portuguese (pt)
Other versions
PT64720B (en
Original Assignee
Toyama Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyama Chemical Co Ltd filed Critical Toyama Chemical Co Ltd
Priority to PT6472076A priority Critical patent/PT64720B/en
Publication of PT64720A publication Critical patent/PT64720A/en
Publication of PT64720B publication Critical patent/PT64720B/en

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  • Cephalosporin Compounds (AREA)

Abstract

Cephalosporins of formula (I): (where R1 = H, a cation or a blocking group and R2 = acetoxy (cpd. C) carbamyloxy (cpd. D), 5-methyl-1,3,4-thiazol-2-ylthio (cpd. B) or 1-methyl-1,2,3,4-tetrazol-5-ylthio (cpd. A)), are broad spectrum antibiotics effective against Gram-positive and Gram-negative bacteria (partic. Pseudomonas aeruginosa, Klebsiella pneumoniae and Proteus species) and stable to bacterial beta-lactamase. The cpds. have low toxicity, are well absorbed to give high blood levels and do not show hemolytic activity.
PT6472076A 1976-01-20 1976-01-20 PROCESS FOR THE PREPARATION OF NEW CEFALOSPORINS PT64720B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PT6472076A PT64720B (en) 1976-01-20 1976-01-20 PROCESS FOR THE PREPARATION OF NEW CEFALOSPORINS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PT6472076A PT64720B (en) 1976-01-20 1976-01-20 PROCESS FOR THE PREPARATION OF NEW CEFALOSPORINS

Publications (2)

Publication Number Publication Date
PT64720A true PT64720A (en) 1976-02-01
PT64720B PT64720B (en) 1977-06-03

Family

ID=20081839

Family Applications (1)

Application Number Title Priority Date Filing Date
PT6472076A PT64720B (en) 1976-01-20 1976-01-20 PROCESS FOR THE PREPARATION OF NEW CEFALOSPORINS

Country Status (1)

Country Link
PT (1) PT64720B (en)

Also Published As

Publication number Publication date
PT64720B (en) 1977-06-03

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