New cephalosporins with 7-acyl groups derived from β-ketoacids. II. Further modifications of 7-(3-oxobutyrylamino)cephalosphorins
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Numata,Minamida,Yamaoka,Shiraishi,Miyawaki
p. 1252 - 1261
(2007/10/21)
A new cephalosporin. SCE-963: 7-[2-(2-aminothiazol-4-yl)-acetamido]-3- [[[1-(2-dimethylaminoethyl)-1h-tetrazol-5-yl]-thio]methyl]ceph-3-em-4-carboxylic acid. Chemistry and structure-activity relationships
The synthesis and the in vitro and in vivo antimicrobial activities of a series of 7-[2-(2-aminothiazol-4-yl)acetamido]cephalosporins (1) having varied 3-substituents, such as methyl, hydroxymethyl, acetoxymethyl, pyridiniomethyl and heterocyclicthiomethyls, are described. The derivates having five membered heterocyclicthiomethyls exhibited strong inhibitory activities against Gram-negative organisms including some strains od Escherichia coli and Proteus morganii which are insensitive to cefazolin and cephaloridine. Pronounced activities were noted with 7-[2-(2-aminothiazol-4-yl)-acetamido]-3-[[[1-(2-dimethylaminoethyl)-1H-tetra zol-5-yl]thio]methyl]ceph-3-em-4-carboxylic acid (1y;SCE-963).
Get Best Price for58684-54-1(6R-trans)-3-(acetoxymethyl)-7-[(4-chloro-1,3-dioxobutyl)amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid