Discovery of a Clinical Stage Multi-Kinase Inhibitor Sodium (E)-2-{2-Methoxy-5-[(2′,4′,6′-trimethoxystyrylsulfonyl)methyl]phenylamino}acetate (ON 01910.Na): Synthesis, Structure–Activity Relationship, and Biological Activity
摘要:
Cyclin D proteins are elevated in many cancer cells, and targeted deletion of cyclin D1 gene in the mammary tissues protects mice from breast cancer, Accordingly, there is an increasing awareness of this novel nonenzymatic target for cancer therapeutics. We have developed novel, nonalkylating styrylbenzylsulfones that induce cell death in wide variety of cancer cells without affecting the proliferation and survival of normal cells. The development of derivatized styrylbenzylsulfones followed logically from a tumor cell cytotoxicity screen performed in our laboratory that did not have an a priori target profile. Modifications of some of the precursor molecules led to lead optimization with regard to tumor cell cytotoxicity. In this report we describe the synthesis and structure-activity relationships of novel, nonalkylating (E)-styrylbenzylsulfones and the development of the novel anticancer agent sodium (E)-2-{2-methoxy-5-[(2',4',6'-trimethoxystyrylsulfonyl)methyl]phenylamino}acetate (ON 01910.Na), which is in phase III trials for myelodysplastic syndromes (MDS) associated with aberrant expression of cyclin D proteins.
Basicity and Solvatochromism of Concave Pyridines with Extended π-Systems in Protic and Nonprotic Solvents
作者:Ole Storm、Ulrich Lüning
DOI:10.1002/ejoc.200300053
日期:2003.8
4-positions of concavepyridines to give substituted concavepyridines 3, which possess absorption maxima above 300 nm in their UV spectra. Their protonation and their interaction with polar solvents have been studied. Firstly, with strong acids, protonation occurs, and relative basicities (logKass) have been determined. Substitution at the remote aryl ring influences the basicity of the pyridine, and Hammett
Hydrothiolation of benzyl mercaptan to arylacetylene: application to the synthesis of (E) and (Z)-isomers of ON 01910·Na (Rigosertib®), a phase III clinical stage anti-cancer agent
作者:Venkat R. Pallela、Muralidhar R. Mallireddigari、Stephen C. Cosenza、Balaiah Akula、D. R. C. Venkata Subbaiah、E. Premkumar Reddy、M. V. Ramana Reddy
DOI:10.1039/c3ob27220f
日期:——
A stereoselective and efficient method for free radical addition of benzyl thiol to aryl acetylene in the presence of Et3B-hexane has been developed for the synthesis of (Z) and (E)-styryl benzyl sulfides where base catalyzed hydrothiolations have failed. The scope of this reaction was successfully extended for the synthesis of (E)-ON 01910·Na, a phase III clinical stage anti-cancer agent and its inactive
一种立体选择性且高效的自由基加成方法苄硫醇在 Et 3 B-己烷存在下将芳基乙炔转化为芳基乙炔已被开发用于合成 ( Z ) 和 ( E )-苯乙烯基苄基硫醚,其中碱催化的氢硫醇化已失败。该反应范围被成功扩展,用于合成III期临床抗癌药物( E )-ON 01910·Na及其无活性几何异构体( Z )-ON 01910·Na。有趣的是,与Z异构体相比,所有合成的E异构体都对癌细胞表现出更好的细胞毒性。
Comparative Analysis of Conjugated Alkynyl Chromophore-Triazacyclononane Ligands for Sensitized Emission of Europium and Terbium
作者:Marine Soulié、Frédéric Latzko、Emmanuel Bourrier、Virginie Placide、Stephen J. Butler、Robert Pal、James W. Walton、Patrice L. Baldeck、Boris Le Guennic、Chantal Andraud、Jurriaan M. Zwier、Laurent Lamarque、David Parker、Olivier Maury
DOI:10.1002/chem.201402415
日期:2014.7.7
A series of europium and terbium complexes based on a functionalized triazacyclononane carboxylate or phosphinate macrocyclic ligand is described. The influence of the anionic group, that is, carboxylate, methylphosphinate, or phenylphosphinate, on the photophysical properties was studied and rationalized on the basis of DFT calculated structures. The nature, number, and position of electron‐donating
Iridium‐Catalyzed Regioselective B(3)‐Alkenylation/B(3,6)‐Dialkenylation of
<i>o</i>
‐Carboranes by Direct B−H Activation
作者:Ruofei Cheng、Zaozao Qiu、Zuowei Xie
DOI:10.1002/chem.202000549
日期:2020.6.5
Iridium‐catalyzed formal alkyne hydroboration with cage B−H of o ‐carborane has been achieved, leading to the controlled synthesis of a series of 3,6‐[trans ‐(AlkCH=CH)]2‐o ‐carboranes (Alk=alkyl), 3‐cis ‐(ArCH=CH)‐o ‐carboranes (Ar=aryl), and 3‐cis ‐(ArCH=CH)‐6‐trans ‐(AlkCH=CH)‐o ‐carboranes in high yields with excellent regio‐ and very good cis –trans selectivity. The most electron‐deficient B(3
Disclosed herein are compounds represented by a formula: R
1
—O-A-C≡C-D, where R
1
, A, and D are defined as described herein. Compositions and light-emitting devices related thereto are also disclosed.