Intermediates for cephalosporin derivatives

Details Intermediates for cephalosporin derivatives Intermediates for cephalosporin derivatives

1982-12-06

1984-10-02

Rizzo, Nicholas S.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

544 25, 544 21, 424246, C07D50138, A61K 31545

Patent

active

044749546

ABSTRACT:
Potent antibacterial agents of the formula ##STR1## wherein R is methyl, ethyl or isopropyl, and their pharmaceutically acceptable salts, physiologically hydrolyzable esters and solvates, and processes for their preparation, are described.

REFERENCES:
patent: 4237128 (1980-12-01), Cimarusti et al.
patent: 4258041 (1981-03-01), O'Callaghan et al.
patent: 4278793 (1981-07-01), Durckheimer et al.

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