Optically active cephalosporin analogs

Details Optically active cephalosporin analogs Optically active cephalosporin analogs

1985-10-17

1987-05-05

Berch, Mark L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D47104, A61K 31435

Patent

active

046634509

ABSTRACT:
Optically active cephalosporin analogs of the formula ##STR1## wherein R.sub.2 represents a hydrogen or a group represented by the formula ##STR2## wherein R.sub.3 is a straight or branched lower alkyl group having 1 to 6 carbon atoms, a straight or branched lower alkoxy group having 1 to 6 carbon atoms or a phenyl group and R.sub.4 is a hydrogen or a straight or branched lower alkyl group having 1 to 6 carbon atoms; and A.sub.2 represents a straight or branched lower alkyl group having 1 to 6 carbon atoms or a straight or branched lower alkyl group having 1 to 6 carbon atoms which is substituted with one or two carboxyl groups, are useful as antibacterial agents.

REFERENCES:
patent: 4218793 (1981-07-01), Durkheimer
patent: 4291164 (1981-09-01), Hirata et al.

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