Stereoisomeric tricyclic bis(dioxopiperazines) of the formula ##STR1## wherein R is H or ##STR2## and the processes for the synthesis thereof are provided. The compounds are effective as antitumor or antimetastatic drugs.
提供公式为##STR1##的立体异构
三环双二酮
哌嗪化合物,其中R为H或##STR2##的合成方法。这些化合物作为抗肿瘤或抗转移药物具有有效性。