The invention relates to antibacterial compounds of formula I wherein X represents sulphur or CH=CH; R1 represents H, PO3H2, SO3H, phosphonooxymethyl or the group -CO-R2 wherein R2 is as defined in the claims M is one of the groups MA and MB represented below wherein A represents a bond or C≡C and R1A, R2A, R3A and R1B are as defined in the claims; and to salts thereof.
该发明涉及公式I的抗菌化合物,其中X代表
硫或CH=CH;R1代表H、PO3H2、SO3H、
磷酸氧甲基或基团-CO-R2,其中R2如权利要求中所定义;M是下面表示的
MA和MB中的一种,其中A代表键或C≡C,而R1A、R2A、R3A和R1B如权利要求中所定义;以及其盐。