Although the antischistosomal activities of N,N'-arylurea analogs were reported, systematic structure-activity relationships have not been conducted. In this Letter, we reported the design, synthesis and evaluation of 45 N,N'-arylurea analogs. Among these prepared compounds, 13 compounds were urea linker modified and 32 were N,N'-arylurea derivatives. The activity evaluation revealed 12 analogs exhibited IC50 values lower than 22.6 mu M, and 7 of them had IC50 less than 10 mu M against the juvenile Schistosoma japonicum in vitro. Their worm killing potency was even higher against adult worm. Unfortunately, low to moderate worm burden reduction of 0-33.4% was recorded after administration of a single oral dose of 200 mg/kg or 400 mg/kg to mice harboring S. japonicum. (C) 2016 Published by Elsevier Ltd.
4"-DEOXY-4"-(S)-AMINO AVERMECTIN DERIVATIVES
申请人:Merial Limited
公开号:EP1421094B1
公开(公告)日:2008-10-15
US7605134B2
申请人:——
公开号:US7605134B2
公开(公告)日:2009-10-20
US7732416B2
申请人:——
公开号:US7732416B2
公开(公告)日:2010-06-08
Discovery and Mechanism of Action of Small Molecule Inhibitors of Ceramidases**
作者:Robert D. Healey、Essa M. Saied、Xiaojing Cong、Gergely Karsai、Ludovic Gabellier、Julie Saint‐Paul、Elise Del Nero、Sylvain Jeannot、Marion Drapeau、Simon Fontanel、Damien Maurel、Shibom Basu、Cedric Leyrat、Jérôme Golebiowski、Guillaume Bossis、Cherine Bechara、Thorsten Hornemann、Christoph Arenz、Sebastien Granier
DOI:10.1002/anie.202109967
日期:2022.1.10
Use of synthetic fluorescent ceramide molecules allows the discovery of the first selective drug-like smallmoleculeinhibitors for alkaline ceramidase 3, an intra-membrane enzyme involved in sphingolipid metabolism in health and disease. These inhibitors represent a new paradigm for controlling lipid metabolism with drug-like smallmolecules targeting conformationally dynamic membrane proteins.