Cephalosporin analogues and processes for the preparation thereo

Details Cephalosporin analogues and processes for the preparation thereo Cephalosporin analogues and processes for the preparation thereo

1979-05-30

1981-04-28

Randolf, John D.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Bacterium or component thereof or substance produced by said...

424246, 260239A, 544 16, 544 92, 548217, C07D49804, A61K 31535

Patent

active

042645972

ABSTRACT:
Compounds of the formula ##STR1## wherein X is --O--or --S--;

REFERENCES:
patent: 4089956 (1978-05-01), Buckley et al.
"Flynn, Cephalosporins and Penicillins, Chemistry and Biology", pp. 273 to 279, Academic Press (1972).
Scartazzini et al., Chem. Abstracts, vol. 80, abst. 83019p (1974) (abst. of Ger. Offen. 2,331,133 issued 1-17-74, p. 263).
Kim et al., Tetrahedron Letters, No. 5, pp. 409 to 412 (1978).
Lednicer et al., The Organic Chemistry of Drug Synthesis, pp. 418-421, John Wiley and Sons, NY (1978).

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