Discovery of Aminoglycoside Mimetics by NMR-Based Screening of Escherichia coli A-site RNA
摘要:
A method is described for the NMR-based screening for the discovery of aminoglycoside mimetics that bind to Escherichia coli A-site RNA. Although aminoglycosides are clinically useful, they exhibit high nephrotoxicity and ototoxicity, and their overuse has led to the development of resistance to important microbial pathogens. To identify a new series of aminoglycoside mimetics that could potentially overcome the problems associated with toxicities and resistance development observed with the aminoglycosides, we have prepared large quantities of E. coli 16 S A-site RNA and conducted an NMR-based screening of our compound library in search for small-molecule RNA binders against this RNA target. From these studies, several classes of compounds were identified as initial hits with binding affinities in the range of 70 muM to 3 mM. Lead optimization through synthetic modifications of these initial hits led to the discovery of several small-molecule aminoglycoside mimetics that are structurally very different from the known aminoglycosides. Structural models of the A-site RNA/ligand complexes were prepared and compared to the three-dimensional structures of the RNA/aminoglycoside complexes.
Aryloxypropanolamine, Verfahren zu ihrer Herstellung und diese Verbindungen enthaltende Arzneimittel
申请人:BOEHRINGER MANNHEIM GMBH
公开号:EP0042593A1
公开(公告)日:1981-12-30
Die neuen Verbindungen der allgemeinen Formel
in der R1-C6 jeweils Wasserstoff, Alkyl oder ggf. weitere Substituenten, A einen Heterocyclus, X eine Alkylenkette und R7-R11 ein- oder zweibindige Reste, wie Wasserstoff, Halogen, Nitro usw. bzw. Sauerstoff oder Schwefel, bedeuten, haben cardiotone und/oder ß-rezeptoren-blockierende Wirkungen und können daher zur Behandlung und Prophylaxe von Herz- und Kreislauferkrankungen verwendet werden. Verfahren zu ihrer Herstellung sowie Arneimittel, die diese Verbindungen enthalten, werden beschrieben.
[EN] GAL3 ANTAGONISTS FOR THE TREATMENT OF NEUROPATHIC PAIN<br/>[FR] ANTAGONISTES DE GAL3 DESTINES AU TRAITEMENT DE DOULEURS NEUROPATHIQUES
申请人:SYNAPTIC PHARMA CORP
公开号:WO2004014307A2
公开(公告)日:2004-02-19
This invention is directed to pyrimidine and indolone derivatives which are selective antagonists for the GAL3 receptor and are useful for the treatment of neuropathic pain and other abnormalities. This invention also provides a method of treating a subject suffering from an abnormality which comprises administering to the subject an amount of a compound of the invention effective to treat the subject's abnormality. This invention also provides a method of treating an abnormality in a subject which comprises administering to the subject a composition comprising a pharmaceutically acceptable carrier and a therapeutically effective amount of a GAL3 receptor antagonist.
Discovery of Aminoglycoside Mimetics by NMR-Based Screening of <i>Escherichia </i><i>c</i><i>oli</i> A-site RNA
作者:Liping Yu、Thorsten K. Oost、Jeffrey M. Schkeryantz、Jianguo Yang、Dave Janowick、Stephen W. Fesik
DOI:10.1021/ja021354o
日期:2003.4.1
A method is described for the NMR-based screening for the discovery of aminoglycoside mimetics that bind to Escherichia coli A-site RNA. Although aminoglycosides are clinically useful, they exhibit high nephrotoxicity and ototoxicity, and their overuse has led to the development of resistance to important microbial pathogens. To identify a new series of aminoglycoside mimetics that could potentially overcome the problems associated with toxicities and resistance development observed with the aminoglycosides, we have prepared large quantities of E. coli 16 S A-site RNA and conducted an NMR-based screening of our compound library in search for small-molecule RNA binders against this RNA target. From these studies, several classes of compounds were identified as initial hits with binding affinities in the range of 70 muM to 3 mM. Lead optimization through synthetic modifications of these initial hits led to the discovery of several small-molecule aminoglycoside mimetics that are structurally very different from the known aminoglycosides. Structural models of the A-site RNA/ligand complexes were prepared and compared to the three-dimensional structures of the RNA/aminoglycoside complexes.