[EN] 3-ARYL AND HETEROARYL SUBSTITUTED 5-TRIFLUOROMETHYL OXADIAZOLES AS HISTONE DEACETYLASE 6 (HDAC6) INHIBITORS<br/>[FR] 5-TRIFLUOROMÉTHYL-OXADIAZOLES SUBSTITUÉS EN 3-ARYLE ET HÉTÉROARYLE EN TANT QU'INHIBITEURS DE L'HISTONE DÉSACÉTYLASE 6 (HDAC6)
申请人:MERCK SHARP & DOHME
公开号:WO2017222951A1
公开(公告)日:2017-12-28
The present invention is directed to substituted 5-trifluoromethyl oxadiazole compounds of generic formula (I) or a pharmaceutically acceptable salt thereof. In particular, the invention is directed to a class of aryl and heteroaryl substituted 5-trifluoromethyl oxadiazole compounds of formula I which may be useful as HDAC6 inhibitors for treating cellular proliferative diseases, including cancer, neurodegenerative diseases, such as schizophrenia and stroke, as well as other diseases.
Visible light-induced one-pot synthesis of CF<sub>3</sub>/CF<sub>2</sub>-substituted cyclobutene derivatives
作者:Xiao Hu、Aishun Ding、Dawen Xu、Hao Guo
DOI:10.1039/d1cc02696h
日期:——
trifluoromethyl/gem-difluoromethylene substituted cyclobutenederivatives has been developed. The mechanism may involve visible light-induced [2+2]-cycloaddition of quinolinones with 1-bromo-1-trifluoromethylethene, followed by base-promoted dehydrobromination, [1,3]-H shift and further dehydrofluorination. A variety of CF3/CF2-substituted cyclobutenes that are currently difficult to obtain are afforded
One-pot synthesis of cyclobutenecarboxylate derivatives via olefinic C-F bond functionalization of gem-difluoroalkenes
作者:Xiao Hu、Yang Li、Hao Guo
DOI:10.1016/j.tetlet.2022.153673
日期:2022.3
A one-pot approach which provides a series of cyclobutenecarboxylates in moderate to excellent yields has been developed. This strategy involves visible light-induced [2+2]-photocycloaddition of quinolinones with 1-bromo-1-trifluoromethylethene, followed by tandem sodium alkoxide-promoted elimination, nucleophilic vinylic substitution and hydrolysis. The in-situ generated gem-difluoroalkene is the
Visible Light-Induced Diastereoselective Construction of Trifluoromethylated Cyclobutane Scaffolds through [2+2]-Photocycloaddition and Water-Assisted Hydrodebromination
作者:Xiao Hu、Weibo Xu、Yin Liu、Hao Guo
DOI:10.1021/acs.joc.2c02976
日期:2023.2.17
diastereoselective synthesis of trifluoromethylated cyclobutane derivatives is described, consisting of [2+2]-photocycloaddition and water-assisted hydrodebromination by one pot. Quinolinones, isoquinolinones, and coumarins are able to participate in this one-pot process with 1-bromo-1-trifluoromethylethene. In addition, stereodefined trisubstituted trifluoromethylated cyclobutane alcohols, carboxylic acids
Visible Light-Induced Regioselective Intermolecular [2 + 2]-Cycloaddition of Alkyne and 2(1<i>H</i>)-Quinolone Derivatives
作者:Hao Hai、Shaoheng Qin、Yanzhi Zhang、Wangsheng Liu、Jin Feng、Hao Guo、Fritz E. Kühn、Yin Liu
DOI:10.1021/acs.joc.3c02685
日期:2024.1.19
intermolecular [2 + 2]-cycloaddition reaction between alkenes and alkynes using thioxanthone and Cu(OTf)2 as cocatalysts. Various quinolin-2(1H)-ones, featuring diverse substituted groups, were successfully employed in this reaction, resulting in the synthesis of a series of 4,8b-dihydrocyclobuta[c]quinolin-3(2aH)-ones. Our methodology presents a novel synthetic approach for alkene-alkyne [2 + 2]-cycloaddition
我们使用噻吨酮和 Cu(OTf) 2作为助催化剂,开发了可见光诱导的烯烃和炔烃之间的分子间 [2 + 2]-环加成反应。各种具有不同取代基的喹啉-2(1 H )-酮被成功地用于该反应,合成了一系列4,8b-二氢环丁[ c ]喹啉-3(2a H )-酮。我们的方法提出了一种新颖的烯烃-炔烃[2 + 2]-环加成合成方法,提供具有卓越区域选择性的环丁烯衍生物。