申请人:Magis Farmaceutici SpA
公开号:US04910222A1
公开(公告)日:1990-03-20
The present invention covers D or L or DL-cysteine derivatives of the general formula (I) ##STR1## wherein R represents H or a fatty saturated or unsaturated acid radical, or a radical of an aromatic acid such as benzoic, cynnamic, salycilic, 2-acetoxybenzoic acid or a heterocyclic acid, as well as their salts, in particular the Ca and Mg salts. The invention refers also to a process for preparing said derivatives and to the pharmaceutical preparations containing them as active principle, having a bronchial liquefying and expectorating activity.
本发明涵盖了一般式(I)的D或L或DL-半胱氨酸衍生物,其中R代表H或饱和或不饱和脂肪酸基团,或芳香酸基团,如苯甲酸、肉桂酸、水杨酸、2-乙酰氧基苯甲酸或杂环酸,以及它们的盐,特别是Ca和Mg盐。该发明还涉及制备这些衍生物的方法以及含有它们作为活性成分的药物制剂,具有支气管液化和祛痰活性。