Preparation and use of 7-¬(2-carboalkoxy-1-methylethenyl)...

Details Preparation and use of 7-¬(2-carboalkoxy-1-methylethenyl)... Preparation and use of 7-¬(2-carboalkoxy-1-methylethenyl)...

C - Chemistry, Metallurgy

07

D

C07D 501/18 (2006.01) C07D 501/00 (2006.01) C07D 501/04 (2006.01)

Patent

CA 2173829

This invention relates to a method of producing 3- alkanoyloxymethyl-3-cephem-4-carboxylic acids from 3-hydroxymethyl-3- cephem-4-carboxylic acids in an aqueous medium for a practical, large- scale production. Moreover, the invention provides an ideal intermediate for the process.

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