申请人:Ciba-Geigy Corporation
公开号:US04331676A1
公开(公告)日:1982-05-25
2-Penem-3-carboxylic acid compounds of the formula ##STR1## in which R.sub.1 represents hydrogen, an organic radical bonded by a carbon atom to the ring carbon atom or an etherified mercapto group and R.sub.2 represents hydroxy or a radical R.sub.2.sup.A forming together with the carbonyl grouping --C(.dbd.O)-- a protected carboxyl group, 1-oxides thereof, as well as salts of such compounds having salt-forming groups, in racemic and optically active form, processes for their preparation, pharmaceutical compositions containing such compounds, and their use as antibiotics, and intermediates and their processes which are useful in the production of the compounds of the formula I.
公式为##STR1##的2-青霉素-3-羧酸化合物,其中R.sub.1代表氢,由碳原子与环碳原子结合的有机基团或醚化巯基团,R.sub.2代表羟基或与羰基团--C(.dbd.O)--一起形成保护羧基的基团R.sub.2.sup.A,其1-氧化物,以及具有形成盐的盐基团的这种化合物的盐,以拉克米和光学活性形式存在,它们的制备方法,含有这种化合物的药物组合物,以及它们作为抗生素的用途,以及在生产公式I化合物中有用的中间体及其制备方法。