529509-59-9Relevant academic research and scientific papers
Identification of 2,4-Disubstituted Imidazopyridines as Hemozoin Formation Inhibitors with Fast-Killing Kinetics and in Vivo Efficacy in the Plasmodium falciparum NSG Mouse Model
Horatscheck, André,Andrijevic, Ana,Nchinda, Aloysius T.,Le Manach, Claire,Paquet, Tanya,Khonde, Lutete Peguy,Dam, Jean,Pawar, Kailash,Taylor, Dale,Lawrence, Nina,Brunschwig, Christel,Gibhard, Liezl,Njoroge, Mathew,Reader, Janette,Van Der Watt, Mari?tte,Wicht, Kathryn,De Sousa, Ana Carolina C.,Okombo, John,Maepa, Keletso,Egan, Timothy J.,Birkholtz, Lyn-Marie,Basarab, Gregory S.,Wittlin, Sergio,Fish, Paul V.,Street, Leslie J.,Duffy, James,Chibale, Kelly
, p. 13013 - 13030 (2020/11/13)
A series of 2,4-disubstituted imidazopyridines, originating from a SoftFocus Kinase library, was identified from a high throughput phenotypic screen against the human malaria parasite Plasmodium falciparum. Hit compounds showed moderate asexual blood stage activity. During lead optimization, several issues were flagged such as cross-resistance against the multidrug-resistant K1 strain, in vitro cytotoxicity, and cardiotoxicity and were addressed through structure-Activity and structure-property relationship studies. Pharmacokinetic properties were assessed in mice for compounds showing desirable in vitro activity, a selectivity window over cytotoxicity, and microsomal metabolic stability. Frontrunner compound 37 showed good exposure in mice combined with good in vitro activity against the malaria parasite, which translated into in vivo efficacy in the P. falciparum NOD-scid IL-2Rnull (NSG) mouse model. Preliminary mechanistic studies suggest inhibition of hemozoin formation as a contributing mode of action.
C-5 Modified indazolylpyrrolotriazines
-
, (2008/06/13)
The present invention provides compounds of formula I and pharmaceutically acceptable salts thereof. The formula I compounds inhibit tyrosine kinase activity of growth factor receptors such as HER1, HER2 and HER4 thereby making them useful as antiproliferative agents. The formula I compounds are also useful for the treatment of other diseases associated with signal transduction pathways operating through growth factor receptors.
Synthesis of 6,6-difluorohomopiperazines via microwave-assisted detosylation
Wellner, Eric,Sandin, Helena,P??kk?nen, Leila
, p. 223 - 226 (2007/10/03)
[1,4]-Diazepan-6-ols are easily oxidized to ketones using Swern or Dess-Martin oxidation conditions. The fluorination of these [1,4]-diazepanones with diethylaminosulfur trifluoride (DAST) affords gem-difluorohomopiperazines. Detosylation under microwave conditions represents a rapid method to access the corresponding amines in high yields.
