2-Oxa-isocephem compounds and compositions containing same

Details 2-Oxa-isocephem compounds and compositions containing same 2-Oxa-isocephem compounds and compositions containing same

1988-03-09

1990-02-06

Raymond, Richard L.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

540 29, 540300, 540364, A61K 31535, C07D49804

Patent

active

048988596

ABSTRACT:
A 2-oxa-isocephem compound of the formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined, pharmaceutically acceptable salts thereof, composition containing the same and processes for preparing the same are disclosed. The compound is useful as an antimicrobial agent.

REFERENCES:
patent: 4013648 (1977-03-01), Horning et al.
patent: 4386089 (1983-05-01), Konig et al.
patent: 4476124 (1984-10-01), Heymes et al.
patent: 4631275 (1986-12-01), Hartwig et al.
patent: 4645769 (1987-02-01), Shibahara et al.

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