Dipicolinic Acid Derivatives as Inhibitors of New Delhi Metallo-β-lactamase-1
作者:Allie Y. Chen、Pei W. Thomas、Alesha C. Stewart、Alexander Bergstrom、Zishuo Cheng、Callie Miller、Christopher R. Bethel、Steven H. Marshall、Cy V. Credille、Christopher L. Riley、Richard C. Page、Robert A. Bonomo、Michael W. Crowder、David L. Tierney、Walter Fast、Seth M. Cohen
DOI:10.1021/acs.jmedchem.7b00407
日期:2017.9.14
mediated resistance, specifically NewDelhimetallo-β-lactamase-1 (NDM-1). By utilization of fragment-based drug discovery (FBDD), a new class of inhibitors for NDM-1 and two related β-lactamases, IMP-1 and VIM-2, was identified. On the basis of 2,6-dipicolinic acid (DPA), several libraries were synthesized for structure–activity relationship (SAR) analysis. Inhibitor 36 (IC50 = 80 nM) was identified
金属-β-内酰胺酶(MBL)介导的耐药性(特别是新德里金属-β-内酰胺酶-1(NDM-1))的出现和全球传播威胁着β-内酰胺类抗生素的有效性。通过利用基于片段的药物发现(FBDD),鉴定出一类新型的NDM-1抑制剂和两种相关的β-内酰胺酶IMP-1和VIM-2。在2,6-二吡啶甲酸(DPA)的基础上,合成了多个文库用于结构-活性关系(SAR)分析。与其他Zn(II)金属酶相比,抑制剂36(IC 50 = 80 nM)被鉴定为对MBL具有高度选择性。虽然DPA显示出螯合NDM-1中金属离子的倾向,但36形成了稳定的NDM-1:Zn(II):抑制剂三元络合物,如1所示。1 H NMR,电子顺磁共振(EPR)光谱,平衡透析,固有色氨酸荧光发射和UV-vis光谱。当与36种(对哺乳动物细胞无毒的浓度)共同给药时,亚胺培南对具有NDM-1的大肠杆菌和肺炎克雷伯菌的临床分离株的最低抑制浓度(MIC)降低至易感水平。
Efficient Formation of Luminescent Lanthanide(III) Complexes by Solid‐Phase Synthesis and On‐Resin Screening
measurements of luminescentlanthanidecomplexes have advantages in biological assays and high‐throughput screening, owing to their high sensitivity. In spite of the recent advances in their energy‐transfer mechanism and molecular‐orbital‐based computational molecular design, it is still difficult to estimate the quantum yields of new luminescentlanthanidecomplexes. Herein, solid‐phase libraries of
[EN] 4-SUBSTITUTED PYRIDINE-2,6-DICARBOXYLIC ACID DERIVATIVES AND METHOD OF PREPARING SAME<br/>[FR] DÉRIVÉS D'ACIDE PYRIDINE-2,6-DICARBOXYLIQUE 4-SUBSTITUÉS ET LEUR PROCÉDÉ DE PRÉPARATION
申请人:OKINAWA INST OF SCIENCE AND TECHNOLOGY SCHOOL CORP
公开号:WO2016038890A1
公开(公告)日:2016-03-17
The present invention relates to novel 4-substituted pyridine-2,6-dicarboxylic acid derivatives, compounds of formula I, wherein R1 and R2are defined herein. The compounds of formula I are useful for making pharmaceutical compositions to treat proliferative diseases. The present invention also relates to concise methods for preparing compounds of formula I that may be performed under mild reaction conditions.
An efficient synthetic approach to 4′,5,5″-triaryl-2,2′:6′,2″-terpyridines
作者:Dmitry S. Kopchuk、Nikolay V. Chepchugov、Grigory A. Kim、Grigory V. Zyryanov、Igor S. Kovalev、Vladimir L. Rusinov、Oleg N. Chupakhin
DOI:10.1016/j.tetlet.2015.12.006
日期:2016.1
An efficient synthetic approach is proposed to construct 4',5,5 ''-triaryl-2,2':6',2 ''-terpyridines using two methods of pyridine ring construction, that is, the Weiss method and the '1,2,4-triazine' methodology. Due to the use of '1,2,4-triazine' methodology in the last step, aza-analogues of terpyridines as well as cycloalkane-annulated terpyridines have been synthesized which are inaccessible by other reported methods. The presented approach involves the use of readily available reagents and simple procedures. (C) 2015 Elsevier Ltd. All rights reserved.
4-SUBSTITUTED PYRIDINE-2,6-DICARBOXYLIC ACID DERIVATIVES AND METHOD OF PREPARING SAME
申请人:Okinawa Institute of Science and Technology
School Corporation