Cephalosporin ethers

Details Cephalosporin ethers Cephalosporin ethers

C - Chemistry, Metallurgy

07

D

260/101.5

C07D 501/16 (2006.01)

Patent

CA 1097613

ABSTRACT OF THE DISCLOSURE The present invention relates to a novel process for preparing cephalosporin ethers which comprises reacting a 7-acylamido-, or 7-amino-3-hydroxy-3-cephem-4-carboxylic acid ester with a diazoalkane. Removal of the ester group provides a 3-alkoxy-3-cephem acid. The 3-alkoxy-3-cephem acids are valuable antibiotic compounds. X-3837A

186688

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