Photoredox Catalysis toward 2-Sulfenylindole Synthesis through a Radical Cascade Process
作者:Marilia S. Santos、Hugo L. I. Betim、Camila M. Kisukuri、Jose Antonio Campos Delgado、Arlene G. Corrêa、Márcio W. Paixão
DOI:10.1021/acs.orglett.0c01297
日期:2020.6.5
A radicalcascade process initiated through visible-light induced thiyl radical coupling with ortho-substituted arylisocianides followed by an intramolecular cyclization and subsequent aromatization to access 2-sulfenylindoles is described. The key thiyl radicals are promptly generated via a hydrogenatomtransfer event. The redox-neutral protocol features broad substrate scope, excellent functional
Novel Nonnucleoside Inhibitors of HIV-1 Reverse Transcriptase. 8. 8-Aryloxymethyl- and 8-Arylthiomethyldipyridodiazepinones
作者:Charles L. Cywin、Janice M. Klunder、MaryAnn Hoermann、Janice R. Brickwood、Eva David、Peter M. Grob、Racheline Schwartz、Daniel Pauletti、Kevin J. Barringer、Cheng-Kon Shih、Christopher L. Sorge、David A. Erickson、David P. Joseph、Susan E. Hattox
DOI:10.1021/jm9707030
日期:1998.7.1
Nevirapine (I) is the first human immunodeficiency virus type 1 (HIV-1) nonnucleoside reversetranscriptase (RT) inhibitor to reach regulatory approval. As a result of a second generation program around the tricyclic core system of nevirapine, 2-chloro-5, 11-dihydro-11-ethyl-5-methyl-8-(2-(pyridin-4-yl)ethyl)-6H-dipyrido[3, 2-b:2',3'-e][1,4]diazepin-6-one (II)1a and 2-chloro-5, 11-dihydro-11-ethyl
Process for the preparation of fluoroalkenylthio heterocyclic derivatives
申请人:Zeneca Limited
公开号:US05728833A1
公开(公告)日:1998-03-17
A process for the preparation of a compound of formula (I): HetSCH.sub.2 CH.sub.2 CH.dbd.CF.sub.2 (I) wherein Het is an optionally substituted 5- or 6-membered heterocyclic ring, which comprises reacting a compound of formula (II): HetSH (II) with a compound of formula (III): CF.sub.2 .dbd.CHCH.sub.2 CH.sub.2 L (III) wherein L is chlorine or bromine or a group --OSO2R.sup.a wherein R.sup.a is a C1-4 alkyl group or a phenyl group optionally substituted by a C1-4 alkyl group.
Synthesis and structure–activity relationships of novel lincomycin derivatives. Part 1. Newly generated antibacterial activities against Gram-positive bacteria with erm gene by C-7 modification
7(S)-7-deoxy-7-arylthiolincomycin derivatives possessing a heterocyclic ring at the C-7 position via sulfur atom by either Mitsunobu reaction of 2,3,4-tris-O-(trimethylsiliyl)lincomycin or SN2 reaction of 7-O-methanesulfonyl-2,3,4-tri-O-trimethylsiliyllincomycin. As a result, 7(S)-7-deoxy-7-arylthiolincomycin derivatives 16, 21 and 27 exhibited antibacterialactivities against respiratory infection-related
Substitute pyrimidine compounds and the use thereof
申请人:BASF Aktiengesellschaft
公开号:US06342604B1
公开(公告)日:2002-01-29
The present invention relates to the use of pyrimidine compounds of the following formula:
wherein R1, R2, R3, A, B and Ar have the meanings indicated in the description. The compounds according to the invention have a high affinity for the dopamine D3 receptor and can therefore be used to treat disorders which respond to dopamine D3 ligands.