Toward the Discovery of New Agents Able to Inhibit the Expression of Microsomal Prostaglandin E Synthase-1 Enzyme as Promising Tools in Drug Development
摘要:
In our recent studies, we focused our attention on the synthesis of several γ‐hydroxybutenolides designed on the basis of petrosaspongiolide M 1 (PM) structure that has been recognized to potently inhibit the inflammatory process through the selective PLA2 enzyme inhibition. By means of a combination of computational methods and efficient synthetic strategies, we generated small collections of PM modified analogs to identify new potent PLA2 inhibitors, suitable for clinical development. In the course of the biological screening of our compounds, we discovered a potent and selective inhibitor of mPGES‐1 expression, the benzothiophene γ‐hydroxybutenolide 2, which so far represents the only product, together with resveratrol, able to reduce PGE2 production through the selective downregulation of mPGES‐1 enzyme. In consideration that microsomal prostaglandin E synthase 1 (mPGES‐1) is one of the most strategic target involved both in inflammation and in carcinogenesis processes, we decided to explore the biological effects of some structural changes of the γ‐hydroxybutenolide 2, hoping to improve its biological profile. This optimization process led to the identification of three strictly correlated compounds 14g, 16g, and 18 with higher inhibitory potency on PGE2 production on mouse macrophage cell line RAW264.7 through the selective modulation of mPGES‐1 enzyme expression.
Toward the Discovery of New Agents Able to Inhibit the Expression of Microsomal Prostaglandin E Synthase-1 Enzyme as Promising Tools in Drug Development
摘要:
In our recent studies, we focused our attention on the synthesis of several γ‐hydroxybutenolides designed on the basis of petrosaspongiolide M 1 (PM) structure that has been recognized to potently inhibit the inflammatory process through the selective PLA2 enzyme inhibition. By means of a combination of computational methods and efficient synthetic strategies, we generated small collections of PM modified analogs to identify new potent PLA2 inhibitors, suitable for clinical development. In the course of the biological screening of our compounds, we discovered a potent and selective inhibitor of mPGES‐1 expression, the benzothiophene γ‐hydroxybutenolide 2, which so far represents the only product, together with resveratrol, able to reduce PGE2 production through the selective downregulation of mPGES‐1 enzyme. In consideration that microsomal prostaglandin E synthase 1 (mPGES‐1) is one of the most strategic target involved both in inflammation and in carcinogenesis processes, we decided to explore the biological effects of some structural changes of the γ‐hydroxybutenolide 2, hoping to improve its biological profile. This optimization process led to the identification of three strictly correlated compounds 14g, 16g, and 18 with higher inhibitory potency on PGE2 production on mouse macrophage cell line RAW264.7 through the selective modulation of mPGES‐1 enzyme expression.
The invention is directed to novel indole carboxamide derivatives. Specifically, the invention is directed to compounds according to formula I:
where R1, R2, R3, U and V are defined below and to pharmaceutically acceptable salts thereof.
The compounds of the invention are inhibitors of IKK2 and can be useful in the treatment of disorders associated with inappropriate IKK2 (also known as IKKβ) activity, such as rheumatoid arthritis, asthma, and COPD (chronic obstructive pulmonary disease). Accordingly, the invention is further directed to pharmaceutical compositions comprising a compound of the invention. The invention is still further directed to methods of inhibiting IKK2 activity and treatment of disorders associated therewith using a compound of the invention or a pharmaceutical composition comprising a compound of the invention.
Discovery of Potent 2-Aryl-6,7-dihydro-5<i>H</i>-pyrrolo[1,2-<i>a</i>]imidazoles as WDR5-WIN-Site Inhibitors Using Fragment-Based Methods and Structure-Based Design
作者:Feng Wang、Kyu Ok Jeon、James M. Salovich、Jonathan D. Macdonald、Joseph Alvarado、Rocco D. Gogliotti、Jason Phan、Edward T. Olejniczak、Qi Sun、Shidong Wang、DeMarco Camper、Joannes P. Yuh、J. Grace Shaw、Jiqing Sai、Olivia W. Rossanese、William P. Tansey、Shaun R. Stauffer、Stephen W. Fesik
DOI:10.1021/acs.jmedchem.8b00375
日期:2018.7.12
WDR5 is a chromatin-regulatory scaffold protein overexpressed in various cancers and a potential epigenetic drug target for the treatment of mixed-lineage leukemia. Here, we describe the discovery of potent and selective WDR5-WIN-site inhibitors using fragment-based methods and structure-based design. NMR-based screening of a large fragment library identified several chemically distinct hit series
WDR5 是一种在多种癌症中过表达的染色质调节支架蛋白,也是治疗混合谱系白血病的潜在表观遗传药物靶点。在这里,我们描述了使用基于片段的方法和基于结构的设计发现了有效且选择性的 WDR5-WIN 位点抑制剂。基于 NMR 的大片段库筛选确定了几个化学上不同的命中序列,它们与 WDR5 内的 WIN 位点结合。使用基于结构的设计方法扩展了 6,7-二氢-5 H -吡咯并[1,2- a ]咪唑片段类的成员,以获得解离常数为 <10 nM 且针对 AML 具有微摩尔细胞活性的先导化合物-白血病细胞系。这些化合物代表了发现临床上有用的 WDR5 抑制剂用于治疗癌症的起点。
[EN] AZAINDOLES USEFUL AS INHIBITORS OF JAK AND OTHER PROTEIN KINASES<br/>[FR] AZAINDOLES UTILES COMME INHIBITEURS DE JANUS KINASES ET D'AUTRES PROTEINES KINASES
申请人:VERTEX PHARMA
公开号:WO2005095400A1
公开(公告)日:2005-10-13
The present invention relates to compounds of formula (I), which are inhibitors of protein kinases. The invention also provides pharmaceutical compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various disorders.
Total synthesis of honokiol by selective samarium-mediated allylic benzoate reduction
作者:Alicia M. Wright、Gregory W. O’Neil
DOI:10.1016/j.tetlet.2016.06.066
日期:2016.8
The total synthesis of the biologicallyrelevant compound honokiol has been completed featuring a samarium-mediated bis-benzoyl ester reduction to simultaneously install both allyl substituents found in the natural product. This reaction was performed after a Suzuki coupling was used to generate the biphenyl core, thereby avoiding problems associated with the acidity of these allyl groups and their
Electrogenerated Chemiluminescent Chemodosimeter Based on a Cyclometalated Iridium(III) Complex for Sensitive Detection of Thiophenol
作者:Kyoung-Rok Kim、Hoon Jun Kim、Jong-In Hong
DOI:10.1021/acs.analchem.8b03445
日期:2019.1.15
body by inhalation and ingestion, which leads to serious internal injuries. Thus, there is an urgent need for real-time and accurate monitoring of thiophenol. Despite remarkable advantages of electrogenerated chemiluminescence (ECL) analysis, ECL thiophenol probes have never been reported. Herein, a new strategy for the rapid detection of thiophenol by use of an ECL turn-on chemodosimeter based on