Cephalosporin derivatives

Details Cephalosporin derivatives Cephalosporin derivatives

1979-03-13

1981-03-24

Coughlan, Jr., Paul M.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

544 28, C07D50156

Patent

active

042581842

ABSTRACT:
Novel cephalosporin derivatives having formulae (V) and (III): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.8 and A are defined as in the specification.

REFERENCES:
patent: 3948903 (1976-04-01), Doub et al.
patent: 4053470 (1977-10-01), Doub et al.
patent: 4154831 (1979-05-01), Kocsis et al.

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