Compounds of the general formula I ##STR1## wherein one of the two radicals R.sub.1 and R.sub.2 denotes the acyl radical of a carboxylic acid of aromatic character and the other denotes hydrogen or optionally esterified or etherified hydroxyl, R.sub.3 denotes hydrogen, alkyl or hydroxyalkyl, R.sub.4 denotes optionally esterified or amidised carboxyl, m denotes 1 or 2 and n denotes 0 or 1, in the free form or in the form of their salts are useful as antiphlogistics, mild analgesics, antipyretics and as anti-rheumatic agents.
通式为I的化合物,其中R.sub.1和R.sub.2中的一个表示芳香性
羧酸的酰基基团,另一个表示氢或可选的酯化或
乙醚化的羟基,R.sub.3表示氢、烷基或羟基烷基,R.sub.4表示可选的酯化或酰胺化羧基,m表示1或2,n表示0或1,在自由形式或其盐的形式下,可用作抗炎、轻微的镇痛剂、退烧剂和抗风湿药物。