Potent and selective CC-chemokine receptor-2 (CCR2) antagonists as a potential treatment for asthma
摘要:
A number of compounds bearing a quaternary ammonium moiety were found to be antagonists with nanomolar binding affinity for the chemokine receptor-2. The structure-activity relationships in the series are described herein along with some detailed characterization of the interesting compounds. (c) 2007 Published by Elsevier Ltd.
Controlled and Chemoselective Reduction of Secondary Amides
作者:Guillaume Pelletier、William S. Bechara、André B. Charette
DOI:10.1021/ja105194s
日期:2010.9.22
presence of 2-fluoropyridine. The electrophilic activated amide can then be reduced to the corresponding iminium using triethylsilane, a cheap, rather inert, and commercially availablereagent. Imines can be isolated after a basic workup or readily transformed to the aldehydes following an acidic workup. The amine moiety can be accessed via a sequential reductive amination by the addition of silane and
Graphite-Supported Gold Nanoparticles as Efficient Catalyst for Aerobic Oxidation of Benzylic Amines to Imines and<i>N</i>-Substituted 1,2,3,4-Tetrahydroisoquinolines to Amides: Synthetic Applications and Mechanistic Study
作者:Man-Ho So、Yungen Liu、Chi-Ming Ho、Chi-Ming Che
DOI:10.1002/asia.200900261
日期:2009.10.5
of N‐substituted 1,2,3,4‐tetrahydroisoquinolines in the presence of aqueous NaHCO3 solution gave the corresponding amides in good yields (83–93 %) with high selectivity (up to amide/enamide=93:4) (6 examples). The same protocol can be applied to the synthesis of benzimidazoles from the reaction of o‐phenylenediamines with benzaldehydes under aerobic conditions (8 examples). By simple centrifugation
使用氧气作为末端氧化剂对胺进行选择性氧化是绿色化学中的重要领域。在这项工作中,我们描述了使用石墨负载的金纳米颗粒(AuNPs / C)催化环状和非环状苄胺的好氧氧化为相应的亚胺,具有中等至优异的底物转化率(43-100%)和产品收率(66–99%)(19个例子)。在NaHCO 3水溶液存在下,对N-取代的1,2,3,4-四氢异喹啉进行氧化,得到的酰胺产率高(83-93%),选择性高(酰胺/酰胺= 93:4)( 6个示例)。相同的协议可以从反应被施加到苯并咪唑的合成Ò在好氧条件下将苯二胺与苯甲醛一起使用(8个例子)。通过简单的离心,可以回收AuNPs / C并重复使用十次,以将二苄基胺氧化为N-亚苄基(苯基)甲胺,而不会显着降低催化活性和选择性。可以将协议“ AuNPs / C + O 2 ”调整为克级,通过氧化10 g 1,2,3,4-可以得到8.9 g(84%分离出的产率)3,4-二氢异
High-Throughput Screening of Reductive Amination Reactions Using Desorption Electrospray Ionization Mass Spectrometry
作者:David L. Logsdon、Yangjie Li、Tiago Jose Paschoal Sobreira、Christina R. Ferreira、David H. Thompson、R. Graham Cooks
DOI:10.1021/acs.oprd.0c00230
日期:2020.9.18
screening system that is capable of screening thousands of organicreactions in a single day. This system combines a liquid handling robot with desorption electrospray ionization (DESI) mass spectrometry (MS) for a rapid reaction mixture preparation, accelerated synthesis, and automated MS analysis. A total of 3840 unique reductive amination reactions were screened to demonstrate the throughputs that are
[EN] QUATERNARY SALT CCR2 ANTAGONISTS<br/>[FR] ANTAGONISTES DE CCR2 A BASE DE SELS QUATERNAIRES
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2006012135A1
公开(公告)日:2006-02-02
Quaternary salt compounds of Formula (I) or pharmaceutically acceptable forms thereof, which are CCR2 antagonists and are useful in preventing, treating or ameliorating CCR2 mediated inflammatory syndromes, disorders or diseases in a subject in need thereof.
Formula (I)的四价盐化合物或其药学上可接受的形式,其为CCR2拮抗剂,可用于预防、治疗或改善CCR2介导的炎症综合征、疾病或症状。
Quaternary salt CCR2 antagonists
申请人:Lagu Bharat
公开号:US20060293379A1
公开(公告)日:2006-12-28
Quaternary salt compounds of Formula (I)
or pharmaceutically acceptable forms thereof, which are CCR2 antagonists and are useful in preventing, treating or ameliorating CCR2 mediated inflammatory syndromes, disorders or diseases in a subject in need thereof.