申请人:University of Pittsburgh
公开号:US05834434A1
公开(公告)日:1998-11-10
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。