申请人:Merk & Co., Inc.
公开号:US05872135A1
公开(公告)日:1999-02-16
The present invention comprises analogs of the CAAX motif of the protein Ras that is modified by farnesylation in vivo. These CAAX analogs inhibit farnesyl-protein transferase. Furthermore, these CAAX analogues differ from those previously described as inhibitors of farnesyl-protein transferase in that they do not have a thiol moiety. The lack of the thiol offers unique advantages in terms of improved pharmacokinetic behavior in animals, prevention of thiol-dependent chemical reactions, such as rapid autoxidation and disulfide formation with endogenous thiols, and reduced systemic toxicity. Further contained in this invention are chemotherapeutic compositions containing these farnesyl transferase inhibitors and methods for their production.
本发明包括蛋白质Ras的CAAX基序的类似物,该基序在体内通过法尼酰化进行修饰。这些CAAX类似物抑制法尼酰蛋白转移酶。此外,这些CAAX类似物与先前描述的抑制法尼酰蛋白转移酶的类似物不同,因为它们不具有硫醇基团。缺乏硫醇基团在改善动物的药代动力学行为、预防依赖硫醇的化学反应(如快速自氧化和与内源硫醇形成二硫键)以及减少全身毒性方面提供了独特优势。本发明还包括含有这些法尼酰转移酶抑制剂的化疗组合物以及其生产方法。