申请人:Roussel-UCLAF
公开号:US04053597A1
公开(公告)日:1977-10-11
Cephalosporan compounds of the formula ##STR1## in the form of racemic mixtures or optically active isomers or in the form of their cis or trans isomers or mixtures thereof wherein R is selected from the group consisting of phenyl substituted with at least one hydroxyl and sydnone optionally substituted with phenyl, R' is selected from the group consisting of hydrogen and R", R" is an ester group easily removable by acid hydrolysis or hydrogenolysis, R.sub.1 and R.sub.2 are alkyl of 1 to 3 carbon atoms, R.sub.3 is selected from the group consisting of hydrogen and alkyl of 1 to 3 carbon atoms, Y is selected from the group consisting of amino and Y', Y' is hydrogen and NHCOOZ, Z is straight or branched alkyl of 1 to 5 carbon atoms and their non-toxic, pharmaceutically acceptable addition salts with organic and inorganic acids and bases where appropriate with the proviso that when Y is amino, R' is hydrogen and when Y is amino or NHCOOZ, R is phenyl which have antibacterial activity and their preparation.
公式为 ## STR1 ## 的头孢菌素化合物,以外消旋混合物或光学活性异构体或其顺反异构体或其混合物的形式存在,其中R选择自苯基,该苯基被至少一个羟基取代和选择自可选用苯基取代的sydnone;R'选择自氢和R",R"是易于通过酸水解或氢解去除的酯基;R.sub.1和R.sub.2是1到3个碳原子的烷基;R.sub.3选择自氢和1到3个碳原子的烷基;Y选择自氨基和Y',Y'是氢和NHCOOZ,Z是1到5个碳原子的直链或支链烷基,以及它们的无毒、药学上可接受的有机和无机酸和碱盐,适当时与所述的酸和碱结合,但当Y为氨基时,R'为氢,当Y为氨基或NHCOOZ时,R为苯基,具有抗菌活性,并且其制备方法。