N-[4-(3-Aminopropyl)aminobutyl]-2-(.omega.-guanidino-fatty acid-amido)-2-substituted-ethanamides represented by the general formula ##STR1## wherein Y represents --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH or ##STR2## R represents a hydrogen atom, an alkyl group of 1 to 4 carbon atoms which may have a hydroxyl group as substituent, or a benzyl group, and n is an integer of from 1 to 8, provided that when Y is ##STR3## and n is 4, R represents the groups other than the hydrogen atom; salt thereof having antitumor activity in experimental animal tumors and a process for the preparation thereof is provided.
该文献描述了一种具有抗肿瘤活性的化合物,其
化学式为:##STR1## 其中Y代表--CH.sub.2 --CH.sub.2 --、--CH.dbd.CH或##STR2## R代表氢原子、1至4个碳原子的烷基,该烷基可能具有羟基取代基,或苯甲基,n为1至8的整数。当Y为##STR3##且n为4时,R代表除氢原子外的它基团。该文献还提供了一种制备该化合物及其盐的方法。