Synthesis of sulfonimide-based branched arylsulfonyl chlorides
摘要:
A four-step synthesis of two branched arylsulfonyl chlorides bearing a sulfonimide branching point is described. The protocol consists of the nucleophilic substitution of a nitro group or a halogen in the corresponding nitro aromatic compounds with benzyl mercaptide and reduction of the remaining nitro group to the amino group. The latter was persulfonylated with 4-toluene sulfonyl chloride and, finally, the benzylsulfide group was converted into a sulfonyl chloride moiety. (C) 2015 Elsevier Ltd. All rights reserved.
Nickel-ironmixedoxidepreparedfrom a nickel-ironhydrotalciteprecursor was found to be a highly efficientcatalyst for the chemoselective reduction of nitroarenes under mild reaction conditions.
BENZAZEPINE DERIVATIVE, PROCESS FOR PRODUCING THE SAME, AND USE
申请人:Takeda Chemical Industries, Ltd.
公开号:EP1422228A1
公开(公告)日:2004-05-26
The present invention provides a novel benzazepine derivative represented by formula :
wherein, R1 is a 5- or 6-membered aromatic ring, R2 is lower alkyl group, etc., Y is an optionally substituted imino group, ring A and ring B are independently an optionally substituted aromatic ring, W is formula -W1-X2-W2- (W1 and W2 are independently S(O)m1 (m1 is 0, 1 or 2), etc., and X2 is an optionally substituted alkylene groupetc. ), a preparation method and use thereof.
Compounds are described which have efflux pump inhibitor activity. Also described are methods of using such efflux pump inhibitor compounds and pharmaceutical compositions which include such compounds.
Crystallography, quantitative structure-activity relationships, (QSAR) and molecular graphics in a comparative analysis of the inhibition of dihydrofolate reductase from chicken liver and Lactobacillus casei by 4,6-diamino-1,2-dihydro-2,2-dimethyl-1-(substituted-phenyl)-s-triazines
作者:Corwin Hansch、Bruce A. Hathaway、Zongru Guo、Cynthia Dias Selassie、Stephen W. Dietrich、Jeffrey M. Blaney、Robert Langridge、Karl W. Volz、Bernard T. Kaufman
DOI:10.1021/jm00368a006
日期:1984.2
The inhibition of dihydrofolatereductase from chicken liver and from Lactobacillus casei has been studied with 4,6-diamino-1,2-dihydro-2,2-dimethyl-1-(substituted-phenyl)-s-triazines. It was found that for the chicken enzyme, inhibitor potency for 101 triazines was correlated by the following equation: log 1/Kiapp = 0.85 sigma tau' - 1.04 log (beta X 10 sigma tau' + 1) + 0.57 sigma + 6.36. The parameter
Nano cobalt ferrite catalyzed coupling reaction of nitroarene and alkyl halide: An odorless and ligand-free rout to unsymmetrical thioether synthesis
作者:Firouz Matloubi Moghaddam、Raheleh Pourkaveh
DOI:10.1016/j.catcom.2017.02.009
日期:2017.5
This study describes an odorless protocol for the synthesis of unsymmetrical sulfides via cobalt ferrite (CoFe2O4) catalyzed cross-coupling reaction of nitroarenes with alkyl halides in the presence of thiourea as sulfur source underligand-freeconditions. The catalyst was recycled using external magnetic field and reused for ten consecutive runs in the reaction of nitrobenzene, thiourea and benzyl
这项研究描述了在无配体条件下,以硫脲为硫源,通过钴铁氧体(CoFe 2 O 4)催化硝基芳烃与烷基卤化物的交叉偶联反应合成不对称硫化物的无味方案。使用外部磁场使催化剂再循环,并在硝基苯,硫脲和苄基溴的反应中连续十次重复使用,而活性没有明显损失。除了可磁分离之外,便宜和空气稳定是该催化系统的另一个重要特征。所有产物均以良好的产率和短的反应时间形成。