Inhibitors of Plasmepsin II—potential antimalarial agents
摘要:
In order to overcome the problem of drug resistance in malaria, it appears wise to concentrate drug discovery efforts toward new structural classes and new mechanisms of action. We report our results, targeting Plasmepsin II, a Plasmodium faleiparum aspartic protease active in hemoglobin degradation, a parasite specific catabolic pathway. The results show that the new structural class is not only inhibiting PMII in vitro but is also active in a P. falciparum infected human red blood cell assay. (c) 2006 Elsevier Ltd. All rights reserved.
Suzuki C−C couplings were performed in high yields in a fluorousbiphase system applying the four differently perfluoro-tagged Pd complexes 2a – d. All four complexes showed similar catalytic activities in the coupling of electron-rich or electron-deficient bromoarenes 3a – e and arylboronic acids 4a – c (Tables 1 and 2). Furthermore, we were able to show that all four Pd complexes could be recycled
Catalyst for aromatic C—O, C—N, and C—C bond formation
申请人:Yale University
公开号:US06562989B2
公开(公告)日:2003-05-13
The present invention is directed to a transition metal catalyst, comprising a Group 8 metal and a ligand having the structure
wherein R, R′ and R″ are organic groups having 1-15 carbon atoms, n=1-5, and m=0-4. The present invention is also directed to a method of forming a compound having an aromatic or vinylic carbon-oxygen, carbon-nitrogen, or carbon-carbon bond using the above catalyst. The catalyst and the method of using the catalyst are advantageous in preparation of compounds under mild conditions of approximately room temperature and pressure.
[EN] AGONISTS AND ANTAGONISTS OF THE S1P5 RECEPTOR, AND METHODS OF USES THEREOF<br/>[FR] AGONISTES ET ANTAGONISTES DU RÉCEPTEUR S1P5, ET LEURS PROCÉDÉS D'UTILISATION
申请人:ABBOTT LAB
公开号:WO2010093704A1
公开(公告)日:2010-08-19
Disclosed are compounds that are agonists or antagonists of the S1P5 receptor, compositions comprising said compounds, and methods of using said compounds and compositions. In certain embodiments, said compounds are 1-benzylazetidine-3-carboxylic acid derivatives. In certain embodiments, said methods relate to the treatment of neuropatic pain and/or a neurodegenerative disorder. In certain embodiments, said compounds may be used in combination with a second therapeutic agent.
Palladium nanoparticles supported on carbon nanotubes from solventless preparations: versatile catalysts for ligand-free Suzuki cross coupling reactions
作者:Ali R. Siamaki、Yi Lin、Kendra Woodberry、John W. Connell、B. Frank Gupton
DOI:10.1039/c3ta12512b
日期:——
atmosphere. The Pd/MWCNT sample with Pd nanoparticle size of 1–3 nm and uniform dispersion prepared by mechanochemical ball-milling at room temperature [designated as (Pd/MWCNT)M] displayed remarkable catalytic activity towards Suzuki crosscouplingreactions with a high turn over number (TON) of 7250 and turn over frequency (TOF) of 217 500 h−1. These nanoparticles were characterized by a variety of techniques
An Efficient Method for the Synthesis of Naphtho[2,3-<i>f</i>]pyrano[3,4-<i>c</i>]quinoline Derivatives Catalyzed by Iodine
作者:W. Wang、M.-M. Zhang、X.-S. Wang
DOI:10.1002/jhet.1606
日期:2014.1
A mild and efficient method for the synthesis of naphtho[2,3‐f]pyrano[3,4‐c]quinoline derivatives via three‐component reaction of aromaticaldehyde, anthracen‐2‐amine, and tetrahydropyran‐4‐one is described using iodine as catalyst. The features of this procedure are mild reaction conditions, good to high yields, and operational simplicity.
描述了一种通过芳族醛,蒽-2-胺和四氢吡喃-4-酮的三组分反应合成萘并[2,3- f ]吡喃并[3,4- c ]喹啉衍生物的温和有效方法。用碘作催化剂。该方法的特征是温和的反应条件,良好至高收率和操作简便。