916771-35-2Relevant articles and documents
Discovery of naturally occurring aurones that are potent allosteric inhibitors of hepatitis C virus RNA-dependent RNA polymerase
Haudecoeur, Romain,Ahmed-Belkacem, Abdelhakim,Yi, Wei,Fortuné, Antoine,Brillet, Rozenn,Belle, Catherine,Nicolle, Edwige,Pallier, Coralie,Pawlotsky, Jean-Michel,Boumendjel, Ahcène
scheme or table, p. 5395 - 5402 (2011/10/02)
We have identified naturally occurring 2-benzylidenebenzofuran-3-ones (aurones) as new templates for non-nucleoside hepatitis C virus (HCV) RNA-dependent RNA polymerase (RdRp) inhibitors. The aurone target site, identified by site-directed mutagenesis, is located in thumb pocket I of HCV RdRp. The RdRp inhibitory activity of 42 aurones was rationally explored in an enzyme assay. Molecular docking studies were used to determine how aurones bind to HCV RdRp and to predict their range of inhibitory activity. Seven aurone derivatives were found to have potent inhibitory effects on HCV RdRp, with IC50 below 5 μM and excellent selectivity index (inhibition activity versus cellular cytotoxicity). The most active aurone analogue was (Z)-2-((1-butyl-1H-indol-3-yl)methylene)-4,6-dihydroxybenzofuran-3(2H)-one (compound 51), with an IC50 of 2.2 μM. Their potent RdRp inhibitory activity and their low toxicity make these molecules attractive candidates as direct-acting anti-HCV agents.
Treatment of mastitis
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Example 6, (2008/06/13)
The invention provides new fluorinated cephalosporin antibiotics of Formula I wherein Ra, Rb, Rc, Rdand Re, independently, are H, F or a C1-C6alkyl-(Z)n— group having at least one fluorine substituent; X is O or S; Y is S, O, or —CH2—; Z is O, S, —SO—, or —SO2—; m and n independently are 0 or 1; and R1is H, C1-C6-alkyl, phenyl or benzyl, each of which may optionally have up to three substituents selected from halo, C1-C4-alkoxy, phenyl, NO2, C1-C6-alkanoyl, benzoyl, or C1-C6-alkanoyloxy; or a physiologically acceptable salt thereof; and methods of preventing or treating or treating infection, particularly mastitis in ruminants, using these antibiotics.