| 摘要 |
<p>A 3- beta -(vic-dihydroxyphenylmethyleneamino-2-oxo-imidazolidine)- or 3- beta -(vic-dihydroxyphenyl-methyleneamino-2,3-dioxo-piperazine)-1-carbonyla mino-acetamidoazetidin-2-one having an acidic grouping on 1N, e.g. of the formula <IMAGE> The compounds are antibiotically active, especially against Pseudomonas bacteria and can be used in combating bacterial infection, as a preservative and as a growth promoting agent in animal feeds.</p> |
