Derivatives of cephalosporins substituted in 3 position by a...

Details Derivatives of cephalosporins substituted in 3 position by a... Derivatives of cephalosporins substituted in 3 position by a...

C - Chemistry, Metallurgy

07

D

260/104.1

C07D 501/36 (2006.01) A61K 31/545 (2006.01) C07D 279/04 (2006.01) C07D 501/00 (2006.01) C07D 501/04 (2006.01) C07D 501/06 (2006.01) C07D 501/14 (2006.01) C07D 501/34 (2006.01) C07D 501/46 (2006.01) C07D 501/56 (2006.01) F27B 9/00 (2006.01)

Patent

CA 1189854

PATENT APPLICATION entitled: New derivatives of cephalosporins substituted in 3 position by a thiomethyl heterocycle group; process for preparing these compounds and pharmaceutical compositions containing them in the names of: Bernard LABEEUW Ali SALHI ABSTRACT OF THE DISCLOSURE The present invention relates to new cephalosporins of general formula (II) Image in which R1=R2=CH3 or R1 and R2 together form a 1,3-propylene group, A is H, a cation, an ester or a hemiacetal, and R3 is a heterocycle comprising five or six atoms including at least one atom of nitrogen. It also relates to a process for preparing these cephalosporins and to the drugs containing them.

416077

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