Potent Farnesyltransferase Inhibitors with 1,4-Diazepane Scaffolds as Novel Destabilizing Microtubule Agents in Hormone-Resistant Prostate Cancer
摘要:
A new class of potent farnesyltransferase inhibitors based on a 1,4-diazepane scaffold was synthesized with protein farnesyltransferase inhibition potencies in the low nanomolar range. The compounds block the growth on two hormone-resistant tumor prostatic cell lines (DU145 and PC3). The advanced cellular evaluation of the more potent farnesyltransferase inhibitors was explored and revealed a disorganization of tubulin in PC3 cells.
The present invention relates to methods of treating cancer using a combination of a compound which is a PSA conjugate and a compound which is a inhibitor of prenyl-protein transferase, which methods comprise administering to said mammal, either sequentially in any order or simultaneously, amounts of at least two therapeutic agents selected from a group consisting of a compound which is a PSA conjugate and a compound which is a inhibitor of prenyl-protein transferase. The invention also relates to methods of preparing such compositions.
The present invention comprises low molecular weight peptidyl compounds that inhibit the farnesyl-protein transferase. Furthermore, these compounds differ from the mono- or dipeptidyl analogs 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.
The present invention comprises piperazine-containing compounds which inhibit prenyl-protein transferases, including farnesyl-protein transferase and geranylgeranyl-protein transferase type I. Such therapeutic compounds are useful in the treatment of cancer.
Synthesis and activity of 1-aryl-1′-imidazolyl methyl ethers as non-thiol farnesyltransferase inhibitors
作者:Qun Li、Gary T. Wang、Tongmei Li、Stephen L. Gwaltney、Keith W. Woods、Akiyo Claiborne、Xilu Wang、Wendy Gu、Jerry Cohen、Vincent S. Stoll、Charles Hutchins、David Frost、Saul H. Rosenberg、Hing L. Sham
DOI:10.1016/j.bmcl.2004.08.011
日期:2004.11
potent and selective farnesyltransferaseinhibitors (FTIs) by transposition of the D-ring to the methyl group on the imidazole of the previously reported FTIs 3. Several compounds such as 4h and 5b demonstrate superior enzymatic activity to the current benchmark compound tipifarnib (1) with IC(50) values in the lower subnanomolar range, while maintaining excellent cellularactivity comparable to tipifarnib
Compounds having the formula
1
are farnesyltransferase inhibitors. Also disclosed are methods for making the compounds, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds.