Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-08-25
1977-05-10
Rizzo, Nicholas S.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
424246, 2602391, C07D50120
Patent
active
040227731
ABSTRACT:
New esters of 7-acylamino-3-substituted-3-cephem-4-carboxylic acids and 1-oxides thereof have been prepared. The compounds are of value as intermediates for the preparation of various important cephalosporins.
REFERENCES:
patent: 3852281 (1974-12-01), Verweij
patent: 3856785 (1974-12-01), Breuer
patent: 3879398 (1975-04-01), Ellerton et al.
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