| abstract |
The present invention provides novel cephalosporin compounds of formula (1), pharmaceutically acceptable non-toxic salts thereof, physiologically hydrolysable esters thereof, hydrates and solvates and isomers thereof, pharmaceutical compositions containing them and their It relates to a manufacturing method.n n n n n n n n n n Wherein A, Q, R 1 , R 2 and Ar are each as mentioned in the specification. |