申请人:Ciba-Geigy Corporation
公开号:US04692442A1
公开(公告)日:1987-09-08
The invention relates to 2-penem-3-carboxylic acid compounds of the formula ##STR1## in which R.sub.a represents an organic radical bonded by a carbon atom to the ring carbon atom, a free, etherified or esterified hydroxy or mercapto group or a halogen atom, 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 a hydroxy group or an R.sub.2.sup.A radical that together with the carbonyl grouping --C(.dbd.O)-- forms a protected carboxyl group, and to salts of such compounds with salt-forming groups, processes for the manufacture of such compounds, pharmaceutical preparations containing compounds of the formula I with pharmacological properties, and their use. The compounds have antibiotic activity.
该发明涉及公式##STR1##的2-青霉烯-3-羧酸化合物,其中R.sub.a代表通过碳原子与环碳原子结合的有机基团,一个自由的、醚化或酯化的羟基或巯基团或一个卤原子,R.sub.1代表氢、通过碳原子与环碳原子结合的有机基团,或醚化的巯基,R.sub.2代表一个羟基或一个R.sub.2.sup.A基团,与羰基--C(.dbd.O)--一起形成一个保护的羧基团,以及含有公式I化合物的具有药理特性的药物制剂的盐和具有盐形成基团的这些化合物的盐,制造这些化合物的方法,含有具有药理特性的公式I化合物的药物制剂,以及它们的用途。这些化合物具有抗生素活性。