Cephalosporin compounds having a 3-position substituent of the formula (I) are described:
-CH₂-S-Q-(Y)n-P
wherein Q is a 5- or 6-membered heterocyclic ring, P is a benzene ring substituted by groups R¹ and R² which are ortho with respect to one another, wherein R¹ is hydroxy or an in vivo hydrolysable ester thereof and R² is hydroxy, an in vivo hydrolysable ester thereof, carboxy, sulpho, hydroxymethyl, methanesulphonamido or ureido; or P is a group of the formula (II) or (III):
wherein M is oxygen or a group NR³ wherein R³ is hydrogen or C1-4 alkyl, said ring P being further optionally substituted; and -(Y)n- is a bond or various linking groups or -(Y)-n may be such so that rings Q and P are fused.
The use of such compounds as antibacterial agents is described as are processes for their preparation and intermediates therefor.
描述了具有式 (I) 3 位取代基的
头孢菌素化合物:
-CH₂-S-Q-(Y)n-P
其中 Q 是 5 或 6 元杂环,P 是被彼此正交的基团 R¹ 和 R² 取代的苯环,其中 R¹ 是羟基或其体内可
水解的酯,R² 是羟基、其体内可
水解的酯、羧基、磺基、羟甲基、甲磺酰胺基或
脲基;或 P 是式 (II) 或 (III) 的基团:
其中 M 是氧或基团 NR³,其中 R³ 是氢或 C1-4 烷基,所述环 P 进一步被任选取代;以及 -(Y)n- 是键或各种连接基团,或 -(Y)-n 可以是使环 Q 和 P 融合的基团。
本文介绍了此类化合物作为抗菌剂的用途,以及其制备工艺和中间体。