Cephalosporins and processes for their preparation

Details Cephalosporins and processes for their preparation Cephalosporins and processes for their preparation

C - Chemistry, Metallurgy

07

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260/104.1

C07D 501/46 (2006.01) A23K 1/17 (2006.01) A61K 31/545 (2006.01) C07D 277/40 (2006.01) C07D 417/14 (2006.01) C07D 501/18 (2006.01) C07D 501/24 (2006.01) C07D 501/42 (2006.01) C07D 501/56 (2006.01) C07D 501/59 (2006.01)

Patent

CA 1284993

New cephalosporins and processes for their preparation ABSTRACT Novel cephalosporins of the formula Image in which R1 is an aliphatic or cycloaliphatic hydrocarbyl radical of up to 6 carbon atoms which is optionally substituted by a carboxyl group, Image is Image , Image ; Image , Image or Image , and R2 and R3 each independently is an optionally substituted aliphatic or cycloaliphatic hydrocarbyl radical of up to 6 carbon atoms, but is not unsubstituted methyl, or pharmaceutically acceptable salts thereof, are effective antibacterially and promote the growth of animals.

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