[EN] SUBSTITUTED CARBAZOLE DERIVATIVES AND USE THEREOF IN ORGANIC ELECTRONICS [FR] DÉRIVÉS DE CARBAZOLE SUBSTITUÉS ET LEUR UTILISATION EN ÉLECTRONIQUE ORGANIQUE
Goudarshivannanavar; Jayadevappa; Mahadevan, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2009, vol. 48, # 10, p. 1419 - 1423
SUBSTITUTED CARBAZOLE DERIVATIVES AND USE THEREOF IN ORGANIC ELECTRONICS
申请人:Langer Nicolle
公开号:US20110266528A1
公开(公告)日:2011-11-03
An organic light-emitting diode, organic solar cell or switching element comprising at least one substituted carbazole derivative of the general formula (I), (II) or (III)
in which
X is NR
4
, O, S or PR
4
;
Y is NR
5
, O, S or PR
5
;
where at least one of the symbols X and Y is NR
4
or NR
5
; substituted carbazole derivatives of the formula (I), (II) or (III); a light-emitting layer comprising at least one substituted carbazole derivative of the general formula (I), (II) or (III) and at least one emitter material; the use of substituted carbazole derivatives of the general formula (I), (II) or (Ill) as matrix material, hole/exciton blocker material and/or electron/exciton blocker material and/or hole injection material and/or electron injection material and/or hole conductor material and/or electron conductor material in an organic light-emitting diode, an organic solar cell or in a switching element, and a device selected from the group consisting of stationary visual display units, mobile visual display units, illumination units, keyboards, garments, furniture and wallpaper comprising at least one inventive organic light-emitting diode.
Discovery and optimization of a new class of pyruvate kinase inhibitors as potential therapeutics for the treatment of methicillin-resistant Staphylococcus aureus infections
作者:Nag S. Kumar、Edie M. Dullaghan、B. Brett Finlay、Huansheng Gong、Neil E. Reiner、J. Jon Paul Selvam、Lisa M. Thorson、Sara Campbell、Nicholas Vitko、Anthony R. Richardson、Roya Zoraghi、Robert N. Young
DOI:10.1016/j.bmc.2014.01.020
日期:2014.3
A novel series of bis-indoles derived from naturally occurring marine alkaloid 4 were synthesized and evaluated as inhibitors of methicillin-resistant Staphylococcus aureus (MRSA) pyruvate kinase (PK). PK is not only critical for bacterial survival which would make it a target for development of novel antibiotics, but it is reported to be one of the most highly connected 'hub proteins' in MRSA, and thus should be very sensitive to mutations and making it difficult for the bacteria to develop resistance. From the co-crystal structure of cis-3-4-dihydrohamacanthin B (4) bound to S. aureus PK we were able to identify the pharmacophore needed for activity. Consequently, we prepared simple direct linked bis-indoles such as 10b that have similar anti-MRSA activity as compound 4. Structure-activity relationship (SAR) studies were carried out on 10b and led us to discover more potent compounds such as 10c, 10d, 10k and 10m with enzyme inhibiting activities in the low nanomolar range that effectively inhibited the bacteria growth in culture with minimum inhibitory concentrations (MIC) for MRSA as low as 0.5 mu g/ml. Some potent PK inhibitors, such as 10b, exhibited attenuated antibacterial activity and were found to be substrates for an efflux mechanism in S. aureus. Studies comparing a wild type S. aureus with a construct (S. aureus LAC Delta pyk::ErmR) that lacks PK activity confirmed that bactericidal activity of 10d was PK-dependant. (C) 2014 Elsevier Ltd. All rights reserved.
ANTI-BACTERIAL PYRUVATE KINASE MODULATOR COMPOUNDS, COMPOSITIONS, USES AND METHODS
申请人:SIMON FRASER UNIVERSITY
公开号:US20170216252A1
公开(公告)日:2017-08-03
Compounds of general formula I that are capable of inhibiting bacterial pyruvate kinase and/or bacterial growth. The compounds may find use as antibacterial agents in therapeutic and/or non-therapeutic contexts.
US8637857B2
申请人:——
公开号:US8637857B2
公开(公告)日:2014-01-28
[EN] ANTI-BACTERIAL PYRUVATE KINASE MODULATOR COMPOUNDS, COMPOSITIONS, USES AND METHODS<br/>[FR] COMPOSÉS ANTIBACTÉRIENS MODULATEURS DE LA PYRUVATE KINASE, COMPOSITIONS, UTILISATIONS ET PROCÉDÉS ASSOCIÉS
申请人:UNIV FRASER SIMON
公开号:WO2016004513A1
公开(公告)日:2016-01-14
Compounds of general formula I that are capable of inhibiting bacterial pyruvate kinase and/or bacterial growth. The compounds may find use as antibacterial agents in therapeutic and/or non- therapeutic contexts.