Cephem compounds

Details Cephem compounds Cephem compounds

1980-08-29

1981-12-29

Rizzo, Nicholas S.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

424246, 544 22, 544 30, C07D50116

Patent

active

043083811

ABSTRACT:
Novel 3-acyloxymethyl-cephem compounds of the formula: ##STR1## wherein R.sup.1 is hydrogen or an acyl group; W is acetonyl, or a group represented by --X--COOH or --X--OH (X is an organic residue) or salts thereof were found to be useful as starting materials for preparing cephalosporins of the formula: ##STR2## wherein R.sup.3 stands for a residue of a nucleophilic compound and R.sup.1 has the same meaning as above.

REFERENCES:
patent: 3929780 (1975-12-01), Weir
patent: 4094978 (1978-06-01), Beeby
patent: 4112087 (1978-09-01), Beeby

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