申请人:Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt.
公开号:US04508658A1
公开(公告)日:1985-04-02
Compounds of the formula ##STR1## wherein R.sup.1 is hydrogen or C.sub.1 to C.sub.6 alkyl; R.sup.2 is hydrogen, phenyl, thienyl, furyl, pyridyl, C.sub.1 to C.sub.6 alkyl, furylalkyl where the alkyl is C.sub.1 to C.sub.6, or phenylalkyl where the alkyl is C.sub.1 to C.sub.6 ; or R.sup.1 and R.sup.2 together form C.sub.1 to C.sub.4 alkylene, furyl-C.sub.1 to C.sub.4 alkylene or phenyl-C.sub.1 to C.sub.4 alkylene; and X is halo; or a pharmaceutically acceptable salt thereof, are disclosed as well as a process for the preparation thereof. The new compounds are intermediates useful in the production of penicillins and cephalosporins with antibiotic activity.
公式为##STR1##的化合物,其中R.sup.1是氢或C.sub.1至C.sub.6烷基;R.sup.2是氢、苯基、噻吩基、呋喃基、吡啶基、C.sub.1至C.sub.6烷基、呋喃基烷基(其中烷基为C.sub.1至C.sub.6),或苯基烷基(其中烷基为C.sub.1至C.sub.6);或者R.sup.1和R.sup.2一起形成C.sub.1至C.sub.4烷基、呋喃-C.sub.1至C.sub.4烷基或苯-C.sub.1至C.sub.4烷基;以及X为卤素;或其药用盐也被披露,以及其制备方法。这些新化合物是生产具有抗生素活性的青霉素和头孢菌素的中间体。