Preparation of cephalosporin compounds

Details Preparation of cephalosporin compounds Preparation of cephalosporin compounds

1976-12-10

1978-09-12

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

204158HE, B01J 110

Patent

active

041135911

ABSTRACT:
The invention relates to a novel method for the preparation of a 7.beta.-acylamido-3-bromomethylceph-3-em-4-carboxylic acid-1-oxide compound by brominating a 7.beta.-acylamido-3-methylceph-3-em-4-carboxylic acid-1-oxide compound.

REFERENCES:
patent: 3544581 (1970-12-01), Essery
patent: 3652546 (1972-03-01), Cheney et al.

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