The invention concerns 7.beta.-amino-cepham-3-one-4-carboxylic acid compounds, particularly esters thereof, and the N-substituted, especially N-acylated derivatives of such compounds. They can be used as intermediates, for example, for the manufacture of the corresponding enol ethers and esters, as well as the corresponding 3-unsubstituted 7.beta.-amino-3-cephem-4-carboxylic acid compounds, which show outstanding pharmacological effects.
该发明涉及7-β-
氨基头孢-3-酮-4-
羧酸化合物,特别是其
酯类,以及这种化合物的N-取代物,尤其是N-酰化衍
生物。它们可以用作中间体,例如,用于制造相应的烯醇醚和酯,以及相应的3-未取代的7-β-
氨基-3-头孢-4-
羧酸化合物,这些化合物显示出杰出的药理效果。