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
1988
ISSN/ISBN: 0021-8820 PMID: 3356606 DOI: 10.7164/antibiotics.41.181
Accession: 041458687
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.