New fluorescence-based high-throughput screening assay for small molecule inhibitors of tyrosyl-DNA phosphodiesterase 2 (TDP2)
作者:Carlos J.A. Ribeiro、Jayakanth Kankanala、Ke Shi、Kayo Kurahashi、Evgeny Kiselev、Azhar Ravji、Yves Pommier、Hideki Aihara、Zhengqiang Wang
DOI:10.1016/j.ejps.2018.03.021
日期:2018.6
molecular structure basis for TDP2 inhibitordiscovery. The assay was validated by screening a preselected library of 1600 compounds (Z′ ≥ 0.72) in a 384-well format, and by running in parallel gel-based assays with fluorescent DNA substrates. This library was curated via virtual high throughput screening (vHTS) of 460,000 compounds from Chembridge Library, using the crystal structure of the novel
A new way of forming the aza-o-xylylene with easily accessible 1,2-dihydroquinolines as precursor has been developed. The presence of an electron-donating group at the proper position of 1,2-dihydroquinoline was crucial for protonation of the alkene through dearomatization with a simple Brønsted acid. The in situ forming reactive intermediate was trapped with Hantzsch ester to afford tetrahydroquinolines
The catalytic enantioselective synthesis of tetrahydroquinolines containing all-carbon quaternary stereocenters via the formation of aza-ortho-xylylene with 1,2-dihydroquinoline as a precursor
Tetrahydroquinolines (THQs) with an all-carbon quaternary stereocenter were effectively obtained via the in situ formation of aza-ortho-xylylene (AOX) with easily accessible 1,2-dihydroquinolines as precursors.
Mild and Convenient Synthesis of 1,2‐Dihydroquinolines from Anilines and Acetone Catalyzed by Ytterbium(III) Triflate in Ionic Liquids
作者:Yongshu Li、Chunlei Wu、Jianliang Huang、Weike Su
DOI:10.1080/00397910600775374
日期:2006.10
Abstract A mild, convenient, and efficient process has been developed for the synthesis of 2,2,4‐trimethyl‐1,2‐dihydroquinolines by the reaction of anilines with acetone catalyzed by ytterbium(III) triflate [Yb(OTf)3] in ionicliquids. The catalyst and ionicliquids can be easily recovered and reused, making this method friendly and environmentally acceptable.
Ceric Ammonium Nitrate: An Efficient Catalyst for One-Pot Synthesis of 2,2,4-Trimethyl-1,2-dihydroquinolines
作者:Shylaprasad Durgadas、Vijay K. Chatare、Khagga Mukkanti、Sarbani Pal
DOI:10.2174/157017810791130586
日期:2010.6.1
Ceric ammonium nitrate (CAN) catalyzed the one-pot synthesis of 2,2,4-trimethyl-1,2-dihydroquinoline derivatives from substituted anilines and acetone via a modified Skraup reaction. The methodology was used to synthesize a novel dihydroquinoline-based compound derived from an anti-inflammatory agent nimesulide.