期刊
JOURNAL OF ANTIBIOTICS
卷 55, 期 11, 页码 975-992出版社
JAPAN ANTIBIOT RES ASSN
DOI: 10.7164/antibiotics.55.975
关键词
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A series of 7-aminothiadiazolylcephalosporins having a 1-(substituted)-1H-imidazo[4,5-b]-pyridinium group at the C-3' position of the cephem nucleus were synthesized and evaluated for in vitro antibacterial activities. Among the cephalosporins prepared in this study, 7beta-[2-(5-amino- 1,2,4-thiadiazol-3-yl)-2(Z)-ethoxyiminoacetamido]-3-[1-(3-methylaminopropyl)-1H-imidazo[4,5-b]pyridinium-4-yl]methyl-3-cephem-4-carboxylate sulfate (S-3578) showed extremely potent broad spectrum activity against both Gram-positive bacteria including methicillin-resistant Staphylococcus aureus (MRSA) and Gram-negative bacteria including Pseudomonas aeruginosa, and good water solubility.
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