Novel organic platinum complex of the formula: ##STR1## wherein R.sup.1 is hydrogen atom or a lower alkyl group, R.sup.2 is a substituted or unsubstituted lower alkyl group, a lower alkenyl group, a lower alkanoyl group, a mono- or di-lower alkylamino group, a substituted or unsubstituted nitrogen-containing hetero-monocyclic group, an oxygen-containing hetero-monocyclic group, or a group of the formula: --CH.sub.2 O(CH.sub.2 CH.sub.2 O).sub.m CH.sub.3, X is carbonyl group or sulfonyl group, m is an integer of 1 or 2, which has excellent anti-tumor activity against various tumors and is useful as an anti-tumor agent, and a process for the preparation thereof, and a pharmaceutical composition containing said compound.
化合物的
化学式为:##STR1## 其中 R.sup.1 是氢原子或较低的烷基基团,R.sup.2 是取代或未取代的较低的烷基基团,较低的烯基基团,较低的烷酰基基团,一种单一或双重较低的烷基
氨基基团,一种取代或未取代的含氮杂环基团,一种含氧杂环基团,或一种公式为:--CH.sub.2 O(CH.sub.2 CH.sub.2 O).sub.m CH.sub.3的基团,X是羰基基团或磺酰基基团,m是1或2的整数,该化合物具有优异的抗肿瘤活性,可用作抗肿瘤剂,制备该化合物的方法以及含有该化合物的制药组合物。