7 α-formamido cephalosporin derivatives having a 3[N-(optionally substituted)aminothiopyridinium thiomethyl] substituent have anti-bacterial activity and are of use in anti-bacterial therapy. Processes for the preparation thereof and intermediates for use in these processes are also disclosed.
具有 3[N-(任选取代的)
氨基
硫代
吡啶硫甲基]取代基的 7 α-甲酰胺基
头孢菌素衍
生物具有抗菌活性,可用于抗菌治疗。此外,还公开了其制备工艺和用于这些工艺的中间体。