Process for preparing cephalosporin compounds

Details Process for preparing cephalosporin compounds Process for preparing cephalosporin compounds

1974-08-09

1976-12-21

Rizzo, Nicholas S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

424246, C07D50102

Patent

active

039988210

ABSTRACT:
The invention is concerned with the preparation of .DELTA..sup.3 -4-carboxy cephalosporin antibiotics possessing a 3-ethyl or substituted 3-ethyl group by means of phosphorous intermediates.

REFERENCES:
patent: 3823139 (1974-07-01), Elphinstone et al.
patent: 3823140 (1974-07-01), Clark et al.
patent: 3853860 (1974-12-01), Weir

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