This invention relates to novel 4'-demethyl-4-epipodophyllotoxin derivatives represented by the general formula (I), and salts thereof: ##STR1## wherein R is a lower alkyl group, and X.sub.1 and X.sub.2 are independently a hydroxyl group or an amino group, the one being an amino group and the other being a hydroxyl group. These novel derivatives have a high carcinostatic activity and a relatively high water solubility and hence are expected to be useful as carcinostatics.
本发明涉及一种新型的4'-去甲基-4-表似副木通素衍
生物,其通式为(I),以及它们的盐: ##STR1## 其中R是较低的烷基,X.sub.1和X.sub.2分别是氢氧基或
氨基,其中一个是
氨基,另一个是氢氧基。这些新的衍
生物具有高的抗癌活性和相对较高的
水溶性,因此被认为可以作为抗癌药物。