N-(4-(4-(2,3-Dichloro- or 2-methoxyphenyl)piperazin-1-yl)butyl)heterobiarylcarboxamides with Functionalized Linking Chains as High Affinity and Enantioselective D3 Receptor Antagonists
摘要:
In the present report, the D3 receptor pharmacophore is modified in the 2,3-diCl- and 2-OCH3-phenylpiperazine class of compounds with the goal to improve D3 receptor affinity and selectivity. This extension of structure-activity relationships (SAR) has resulted in the identification of the first enantioselective D3 antagonists (R- and S-22) to be reported, wherein enantioselectivity is more pronounced at D3 than at D2, and that a binding region on the second extracellular loop (E2) may play a role in both enantioselectivity and D3 receptor selectivity. Moreover, we have discovered some of the most D3-selective compounds reported to date that show high affinity (K-i = 1 nM) for D3 and similar to 400-fold selectivity over the D2 receptor subtype. Several of these analogues showed exquisite selectivity for D3 receptors over >60 other receptors, further underscoring their value as in vivo research tools. These lead compounds also have appropriate physical characteristics for in vivo exploration and therefore will be useful in determining how intrinsic activity at D3 receptors tested in vitro is related to behaviors in animal models of addiction and other neuropsychiatric disorders.
[EN] ANTI-BACTERIAL PYRUVATE KINASE MODULATOR COMPOUNDS, COMPOSITIONS, USES, AND METHODS<br/>[FR] COMPOSÉS ANTIBACTÉRIENS MODULATEURS DE LA PYRUVATE KINASE, COMPOSITIONS, UTILISATIONS ET MÉTHODES ASSOCIÉES
申请人:UNIV BRITISH COLUMBIA
公开号:WO2012051708A1
公开(公告)日:2012-04-26
Compounds having a structure of Formulas A-C are provided. Uses of such compounds as an antibiotic, including both gram-negative and gram-positive micro-organisms, as well as methods of treatment and uses involving such compounds are provided.
[EN] LYSYL OXIDASE-LIKE 2 INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE LA LYSYL OXYDASE-LIKE 2 ET UTILISATIONS DESDITS INHIBITEURS
申请人:PHARMAKEA INC
公开号:WO2018048930A1
公开(公告)日:2018-03-15
Described herein are compounds that are LOXL2 inhibitors, methods of making such compounds, pharmaceutical compositions and medicaments comprising such compounds, and methods of using such compounds in the treatment of conditions, diseases, or disorders associated with LOXL2 activity.
The present invention relates to compounds that are capable of inhibiting, modulating and/or regulating signal transduction of both receptor-type and non-receptor type tyrosine kinases. The compounds of the instant invention possess a core structure that comprises a sulfonyl indole moiety. The present invention is also related to the pharmaceutically acceptable salts, hydrates and stereoisomers of these compounds.
Optimization and structure–activity relationships of a series of potent inhibitors of methicillin-resistant Staphylococcus aureus (MRSA) pyruvate kinase as novel antimicrobial agents
作者:Nag S. Kumar、Emily A. Amandoron、Artem Cherkasov、B. Brett Finlay、Huansheng Gong、Linda Jackson、Sukhbir Kaur、Tian Lian、Anne Moreau、Christophe Labrière、Neil E. Reiner、Raymond H. See、Natalie C. Strynadka、Lisa Thorson、Edwin W.Y. Wong、Liam Worrall、Roya Zoraghi、Robert N. Young
DOI:10.1016/j.bmc.2012.10.002
日期:2012.12
A novel series of hydrazones were synthesized and evaluated as inhibitors of methicillin-resistant Staphylococcus aureus (MRSA) pyruvate kinase (PK). PK has been identified as one of the most highly connected 'hub proteins' in MRSA. PK has been shown to be critical for bacterial survival which makes it a potential target for development of novel antibiotics and the high degree of connectivity implies it should be very sensitive to mutations and thus less able to develop resistance. PK is not unique to bacteria and thus a critical requirement for such a PK inhibitor would be that it does not inhibit the homologous human enzyme(s) at therapeutic concentrations. Several MRSA PK inhibitors (including 8d) were identified using in silico screening combined with enzyme assays and were found to be selective for bacterial enzyme compared to four human PK isoforms (M1, M2, R and L). However these lead compounds did not show significant inhibitory activity for MRSA growth presumably due to poor bacterial cell penetration. Structure-activity relationship (SAR) studies were carried out on 8d and led us to discover more potent compounds with enzyme inhibiting activities in the low nanomolar range and some were found to effectively inhibit bacteria growth in culture with minimum inhibitory concentrations (MIC) as low as 1 mu g/mL. These inhibitors bind in two elongated flat clefts found at the minor interfaces in the homo-tetrameric enzyme complex and the observed SAR is in keeping with the size and electronic constraints of these binding sites. Access to the corresponding sites in the human enzyme is blocked. (C) 2012 Elsevier Ltd. All rights reserved.
DERIVES D'INDOLE 2-CARBOXAMIDES ET D'AZAINDOLE 2-CARBOXAMIDES SUBSTITUES PAR UN GROUPE SILANYLE, LEUR PREPARATION ET LEUR APPLICATION EN THERAPEUTIQUE