Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-08-25
1977-09-06
Schwartz, Gerald A.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
424271, C07D49958, C07D49944
Patent
active
040467597
ABSTRACT:
There disclose new penicillin esters and S-oxides thereof which are of value as intermediates for the preparation of various cephalosporin antibiotics.
REFERENCES:
patent: 2650218 (1953-08-01), McDuffie et al.
patent: 3528965 (1970-09-01), Cole et al.
patent: 3652546 (1972-03-01), Cheney et al.
Jansen et al., J. Chem. Soc. 2127-2132 (1965).
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