Cephalosporin compounds and processes for preparation thereof

Details Cephalosporin compounds and processes for preparation thereof Cephalosporin compounds and processes for preparation thereof

C - Chemistry, Metallurgy

07

D

C07D 501/36 (2006.01) A61K 31/545 (2006.01)

Patent

CA 2072883

2072883 9208721 PCTABS00013 The present invention relates to new cephalosporin compounds of formula (I), pharmaceutically acceptable non-toxic salts thereof, and physiologically hydrolyzable esters and solvates thereof, which have potent and broad antibacterial activities. In formula (I), R1 is a C1-4 alkyl, C3-4 alkenyl, C3-4 alkynyl group, or -C(Ra)(Rb)CO2H, wherein Ra and Rb are the same or different, and each is a hydrogen atom or a C1-4 alkyl group, or Ra and Rb form a C3-7 cycloalkyl group with the carbon atom to which they are linked; R2 is a C1-4 alkyl, C3-4 alkenyl or C3-4 cycloalkyl group, a substituted or unsubstituted amino group, or a substituted or unsubstituted phenyl group; R3 is hydrogen or a C1-4 alkyl group; and Q is N or CH. The invention further relates to a process for preparing said compounds, and to pharmaceutical compositions containing said compounds.

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