Cephalosporin derivatives, and their application as antibiotics

Details Cephalosporin derivatives, and their application as antibiotics Cephalosporin derivatives, and their application as antibiotics

1988-04-28

1990-08-21

Rizzo, Nicholas S.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

540222, 540226, 540227, 514206, 514207, C07D50134, A61K 31545

Patent

active

049506617

ABSTRACT:
The present invention relates to derivatives of the cephalosporin family, of formula: ##STR1## in which: X is an oxygen atom or a sulfur atom

REFERENCES:
patent: 3647788 (1972-03-01), Clark et al.
patent: 3769277 (1973-10-01), Long et al.
patent: 3830700 (1974-08-01), O'Callaghan et al.
patent: 4223133 (1980-09-01), Bunnell
patent: 4304770 (1981-12-01), Takaya et al.
patent: 4476123 (1984-10-01), Labeeuw et al.
patent: 4604387 (1986-08-01), Labeeuw et al.
patent: 4656166 (1987-07-01), Salhi et al.

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