7.beta.-(2-aryl-2-(etherified oximino) acetamido)...

Details 7.beta.-(2-aryl-2-(etherified oximino) acetamido)... 7.beta.-(2-aryl-2-(etherified oximino) acetamido)...

C - Chemistry, Metallurgy

07

D

260/104.1

C07D 501/26 (2006.01) A61K 31/545 (2006.01) C07D 501/04 (2006.01) C07D 501/24 (2006.01) C07D 501/32 (2006.01) C07D 501/34 (2006.01) C07D 501/60 (2006.01)

Patent

CA 1070673

ABSTRACT OF THE DISCLOSURE Cephalosporin antibiotics in which the 7.beta.-acylamido group is syn 2-aryl-2-(etherified imino) acetamido and in which the 3-position substituent is an alkyl-, alkenyl-etc substituted carbamoyloxymethyl group exhibit high antibacterial activity against a broad range of gram positive and gram negative organisms, particularly high stability to .beta.-lactamases produced by various organisms, and stability in vivo. The compounds are syn isomers or exist as mixtures of syn and anti isomers containing at least 90% of the syn isomer.

233953

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