Optimized S-Trityl-l-cysteine-Based Inhibitors of Kinesin Spindle Protein with Potent in Vivo Antitumor Activity in Lung Cancer Xenograft Models
摘要:
The mitotic kinesin Eg5 is critical for the assembly of the mitotic spindle and is a promising chemotherapy target. Previously, we identified S-trityl-L-cysteine as a selective inhibitor of Eg5 and developed triphenylbutanamine analogues with improved potency, favorable drug-like properties, but moderate in vivo activity. We report here their further optimization to produce extremely potent inhibitors of Eg5 (K-i(app) < 10 nM) with broad-spectrum activity against cancer cell lines comparable to the Phase II drug candidates ispinesib and SB-743921. They have good oral bioavailability and pharmacolcinetics and induced complete tumor regression in nude mice explanted with lung cancer patient xenografts. Furthermore, they display fewer liabilities with CYP-metabolizing enzymes and hERG compared with ispinesib and SB-743921, which is important given the likely application of Eg5 inhibitors in combination therapies. We present the case for this preclinical series to be investigated in single and combination chemotherapies, especially targeting hematological malignancies.
Amino acid loaded trityl alcohol resins, method of production of amino acid loaded trityl alcohol resins and therapeutics produced therewith
申请人:Rohm and Haas Company
公开号:EP1447408A1
公开(公告)日:2004-08-18
The present invention relates to a process for making a biologically active substance or therapeutic agent free of a chlorotrityl chloride linker-resin. The process includes reacting an activated amino acid or activated amino acid derivative with a substituted or unsubstituted trityl alcohol resin to obtain a resin-CT-AA product; and, reacting the resin-CT-AA product with other building blocks of the biologically active substance or therapeutic agent to obtain said biologically active substance or therapeutic. A product created by this process is also provided herein. The invention is particularly useful to create T-20 and T-1249 therapeutics.
852. Free radicals and radical stability. Part XIV. (Ethoxyphenyl)diphenylmethanols and the free radical (o-ethoxyphenyl)-diphenylmethyl
作者:S. T. Bowden、D. T. Zalichi
DOI:10.1039/jr9570004240
日期:——
KOPELTSIV, YU. A.;KOLESNIKOV, V. T.;SHERMOLOVICH, YU. G.;TROTSENKO, S. I.+, ZH. OBSHCH. XIMII, 1986, 56, N 3, 588-592
作者:KOPELTSIV, YU. A.、KOLESNIKOV, V. T.、SHERMOLOVICH, YU. G.、TROTSENKO, S. I.+
DOI:——
日期:——
PROCESS FOR PREPARING HIGH-REACTIVITY ISOBUTENE HOMO- OR COPOLYMERS
申请人:BASF SE
公开号:EP3416991A1
公开(公告)日:2018-12-26
Amino acid loaded trityl alcohol resins, method of production of amino acid loaded trityl alcohol resins and biologically active substances and therapeutics produced therewith
申请人:——
公开号:US20040158037A1
公开(公告)日:2004-08-12
The present invention relates to a process for making a biologically active substance or therapeutic agent free of a chlorotrityl chloride linker-resin. The process includes reacting an activated amino acid or activated amino acid derivative with a substituted or unsubstituted trityl alcohol resin to obtain a resin-CT-AA product; and, reacting the resin-CT-AA product with other building blocks of the biologically active substance or therapeutic agent to obtain said biologically active substance or therapeutic. A product created by this process is also provided herein. The invention is particularly useful to create T-20 and T-1249 therapeutics.