Section 42
Chapter 41,459

Studies on cephalosporin antibiotics. II. Synthesis, antibacterial activity and oral absorption of 3-alkoxycarbonylmethoxy-7 beta-[ (Z) -2- (2-aminothiazol-4-yl) -2- (O-substituted oxyimino) -acetamido]cephalosporins

Yokoo, C.; Goi, M.; Onodera, A.; Murata, M.; Nagate, T.; Watanabe, Y.; Sota, K.

Journal of Antibiotics 41(2): 181-192


ISSN/ISBN: 0021-8820
PMID: 3356606
DOI: 10.7164/antibiotics.41.181
Accession: 041458687

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The synthesis, antibacterial activity and oral absorption in rats of 3-alkoxycarbonyl-methoxy-7 beta-[(Z)-2-(2-aminothiazol-4-yl)-2-(O-substituted oxyimino)acetamido]cephalosporins (1) are described. In this cephalosporin series, 7 beta-[(Z)-2-(2-aminothiazol-4-yl)-2-(carboxy-methoxyimino)acetamid o] cephalosporins (1b, 1i and 1j) with a lower alkoxycarbonylmethoxy group at the C-3 position of a cephem nucleus exhibited not only potent activity against Gram-negative bacteria but also good oral absorption in rats. Structure-activity relationships of 1 are also presented.

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