Compounds represented by the following formula I: ##STR1## in which: R.sup.1 to R.sup.5 can have various meanings of which alkyl, substituted or non-substituted aryl, and m is equal to 0 or 1, X is selected from (CR.sup.6 R.sup.7).sub.n in which n=0 or 1, and CO are disclosed. These compounds are useful as anti-tumor drugs, especially with pro-oxidizing activity.
以下式子I所代表的化合物:##STR1## 其中:R.sup.1到R.sup.5可以有不同的含义,其中包括烷基,取代或未取代的芳基,m等于0或1,X选自(CR.sup.6 R.sup.7).sub.n,其中n等于0或1,以及CO。这些化合物可用作
抗肿瘤药物,特别是具有促氧化活性的药物。