申请人:Biorex Laboratories Limited
公开号:US04190671A1
公开(公告)日:1980-02-26
The present invention provides new chalcone derivatives of the general formula: ##STR1## wherein R.sub.1 is a hydroxyl, carboxylic acid or sulphonic acid group or a carboxyalkoxy or sulphoalkoxy radical, R.sub.2 and R.sub.3, which may be the same or different, are hydrogen or halogen atoms, hydroxyl groups or alkoxy radicals and R.sub.4 is an alkyl, hydroxyalkyl, alkoxy, carboxyalkoxy, sulphoalkoxy or carboxyalkylcarbonyloxyalkyl radical or a carboxylic acid or sulphonic acid group, with the proviso that compounds of general formula (Ia) always contain at least one carboxylic acid or sulphonic acid group; and the non-toxic inorganic and organic salts of those compounds containing at least one carboxylic acid or sulphonic acid group, the compounds of the invention are useful for treating inflammatory and allergic conditions and for treating ulcerous conditions of the gastro-intestinal tract in humans.
本发明提供了一种新的香豆素衍生物,其通式为:##STR1## 其中R.sub.1是羟基、羧基或磺酸基或羧基烷氧基或磺酸基烷氧基基团,R.sub.2和R.sub.3可以相同或不同,是氢原子、卤素、羟基或烷氧基,R.sub.4是烷基、羟基烷基、烷氧基、羧基烷氧基、磺酸基烷氧基或羧基烷氧基烷氧基基团或羧基或磺酸基,但通式(Ia)的化合物始终至少含有一个羧基或磺酸基;以及至少含有一个羧基或磺酸基的这些化合物的无毒无机和有机盐,该发明的化合物用于治疗人类的炎症和过敏症状以及治疗胃肠道溃疡病情。