Peptidomimetics of the formula C.beta.X where C is cysteine, X is any naturally occuring amino acid, and .beta. is a hydrophobic spacer, most notably 2-phenyl-4-aminobenzoic acid. These compounds are effective inhibitors of p2lras farnesyltrasferase, block Ras-dependent oncogenic signalling and inhibit human tumor growth in vivo in animal models. Pro-drugs made by functionalizing terminal amino and carboxylic acid groups of peptides and peptidomimetics are also disclosed. Such functionalized derivatives demonstrate increased cell uptake. Other structural modifications are also disclosed.
Cysteine(半胱
氨酸)为C,X为任何天然
氨基酸,β为疏
水间隔,尤其是2-苯基-4-
氨基
苯甲酸,其肽类类似物的
化学公式为C.β.X。这些化合物是p2lras farnesyltrasferase的有效
抑制剂,可以阻止Ras依赖的致癌信号传导,并在动物模型中抑制人类肿瘤生长。此外,还公开了通过对肽和肽类类似物的末端
氨基和
羧酸基团进行功能化制备的前药。这些功能化衍
生物表现出增加的细胞摄取率。还公开了其他结构修饰。