Exploring Leishmania major Inositol Phosphorylceramide Synthase (LmjIPCS): Insights into the ceramide binding domain
作者:John G. Mina、Jackie A. Mosely、Hayder Z. Ali、Paul W. Denny、Patrick G. Steel
DOI:10.1039/c0ob00871k
日期:——
The synthesis of set of ceramide analogues exploring hydrophobicity in the acyl chains and the degree and nature of hydroxylation is described. These have been assayed against the parasitic protozoan enzymeLmjIPCS. These studies showed that whilst the C-3 hydroxyl group was not essential for turnover it provided enhanced affinity. Reflecting the membrane bound nature of the enzyme a long (C13) hydrocarbon ceramide tail was necessary for both high affinity and turnover. Whilst the N-acyl chain also contributed to affinity, analogues lacking the amide linkage functioned as competitive inhibitors in both enzyme and cell-based assays. A model that accounts for this observation is proposed.
ASYMMETRIC SYNTHESES FOR SPIRO-OXINDOLE COMPOUNDS USEFUL AS THERAPEUTIC AGENTS
申请人:XENON PHARMACEUTICALS INC.
公开号:US20130274483A1
公开(公告)日:2013-10-17
This invention is directed to asymmetric syntheses of certain spiro-oxindole derivatives, which are useful for the treatment and/or prevention of sodium channel-mediated diseases or conditions, such as pain.
[EN] PROCESSES FOR PREPARING TOLL-LIKE RECEPTOR MODULATOR COMPOUNDS<br/>[FR] PROCÉDÉS DE PRÉPARATION DE COMPOSÉS MODULATEURS DU RÉCEPTEUR DE TYPE TOLL
申请人:GILEAD SCIENCES INC
公开号:WO2020264081A1
公开(公告)日:2020-12-30
The present disclosure provides methods for preparing (7?)-2-((2-amino-7- fluoropyrido[3,2-d]pyrimidin-4-yl)amino)-2-methylhexan-l-ol or a salt thereof and related key intermediates.
Stuttgart · New York ISSN 0039-7881 Abstract: The catalytic asymmetric alkylation under phase-transfer conditions of various substrates (enones, -fluoro ketones, glycineimines) promoted by chiral quaternary ammonium salts derived from cinchona alkaloids is described. A solvent-free phase-transfer catalysis is presented as well as a newtype of polymer-supported phase-transfercatalyst derived from