7β-[2-(aminothiazolyl and thiadiazolyl)-2-oxyiminoacetamido]cephalosporin derivatives having a 3-[N-(optionally substituted) aminopyridiniumthiomethyl] substituent have antibacterial activity and are of use in antibacterial therapy. Processes for the preparation of such cephalosporins plus intermediates for use in the preparation thereof, including N-(optionally substituted)amino-thiopyridones, are also described.
7β-[2-(
氨基
噻唑基和
噻二唑基)-2-氧亚
氨基乙酰
氨基]
头孢菌素衍
生物具有 3-[N-(任选取代的)
氨基吡啶硫甲基]取代基,具有抗菌活性,可用于抗菌治疗。此外,还介绍了制备此类
头孢菌素的工艺以及用于制备此类
头孢菌素的中间体,包括 N-(任选取代的)
氨基
硫代
吡啶酮。