β-Lactam antibiotics are disclosed which have the formula (IA) or are pharmaceutically acceptable salts or pharmaceutically acceptable invivo hydrolysable esters thereof:
wherein Y is a 1-(optionally substituted amino)-1H-tetrazol-5-yl, 4-(optionally substituted amino)-1,2,4-triazol-3-yl, or 2-(optionally substituted amino)-1,3,4-thiadiazol-5-yl group; R¹ is phenyl, substituted phenyl, cyclohexenyl, cyclohexadienyl, or an optionally substituted 5- or 6- membered heterocyclic ring containing up to three hetero atoms selected from oxygen, nitrogen and sulphur; and R² is C₁₋₈ alkyl; and also the use thereof.Processes for the preparation of the compounds are disclosed together with intermediates for use therein.
β-内酰胺类抗生素的结构公式为(IA),或其药用盐或药用体内可
水解酯,其中Y是1-(可选择地取代的
氨基)-
1H-四唑-5-基,4-(可选择地取代的
氨基)-
1,2,4-三唑-3-基,或2-(可选择地取代的
氨基)-1,3,4-
噻二唑-5-基;R¹是苯基,取代苯基,
环己烯基,环
己二烯基,或含有最多三个氧、氮和
硫杂原子的可选择地取代的5-或6-元杂环环。R²是C₁₋₈烷基。此外,还公开了这些抗生素的用途。还公开了制备这些化合物的方法,以及用于其中的中间体。