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; a salt thereof having antitumor activity in experimental animal tumors and a process for the preparation thereof is provided.
通式表示的N-[4-(3-
氨基丙基)
氨基丁基]-2-(ω-
胍基
脂肪酸酰胺)-2-取代乙酰胺,其中Y代表--(CH₂-CH₂-、--CH=CH或R代表氢原子、1至4个碳原子的烷基基团,可能有羟基取代,或苄基基团,n为1至8的整数,但当Y为且n为4时,R代表除氢原子之外的基团;其盐在实验动物肿瘤中具有抗肿瘤活性,提供了其制备方法。