- Inhibitors of tick-borne flavivirus reproduction from structure-based virtual screening
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Flaviviruses form a large family of enveloped viruses affecting millions of people over the world. To date, no specific therapy was suggested for the infected people, making the treatment exclusively symptomatic. Several attempts were performed earlier for the design of fusion inhibitors for mosquito-borne flaviviruses, whereas for the tick-borne flaviviruses such design had not been performed. We have constructed homology models of envelope glycoproteins of tick-transmitted flaviviruses with the detergent binding pocket in the open state. Molecular docking of substituted 1,4-dihydropyridines and pyrido[2,1-b][1,3,5]thiadiazines was made against these models, and 89 hits were selected for the in vitro experimental evaluation. Seventeen compounds showed significant inhibition against tick-borne encephalitis virus, Powassan virus, or Omsk hemorrhagic fever virus in the 50% plaque reduction test in PEK cells. These compounds identified through rational design are the first ones possessing reproduction inhibition activity against tick-borne flaviviruses.
- Osolodkin, Dmitry I.,Kozlovskaya, Liubov I.,Dueva, Evgenia V.,Dotsenko, Victor V.,Rogova, Yulia V.,Frolov, Konstantin A.,Krivokolysko, Sergey G.,Romanova, Ekaterina G.,Morozov, Alexey S.,Karganova, Galina G.,Palyulin, Vladimir A.,Pentkovski, Vladimir M.,Zefirov, Nikolay S.
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supporting information
p. 869 - 874
(2013/10/01)
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- New 6-ethoxyquinolines as simple optoquine analogues
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Reaction of 6-ethoxylepidine (6-ethoxy-4-methylquinoline) with strong base and electrophiles leads to new derivatives, as possible optoquine analogues.
- Jones, Raymond C. F.,Collighan, Russell J.,Crane, Joanna,Hodges, Nikolas J.,Ling, Matthew S.,Stroud, Joanne
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p. 3185 - 3191
(2007/10/03)
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- 4-isoxazolecarboxamide derivatives
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This invention is directed to compounds of the formula (I): STR1 wherein R1 is --OR4 (where R4 is hydrogen, lower alkyl, lower hydroxyalkyl, phenyl, phenyl-lower-alkyl, or --(CH2)n Y where n is an integer from 1 to 4 and Y is morpholino, -SR5, --C(O)OR5, --C(O)N(R6)2, --N(R6)2, or --N+ (R6)3 X-, in which R5 is lower alkyl, each R6 is independently selected from hydrogen or lower alkyl, and X is halogen) or --SR7 (where R7 is lower alkyl, phenyl-lower-alkyl, or --(CH2)n W where W is --N(R6)2 or --N+ (R6)3 X-, and n, R6 and X are as previously defined); R2 is lower alkyl, phenyl or phenyl-lower-alkyl; R3 is halo, hydroxy, lower alkyl, lower alkoxy, lower haloalkyl, lower haloalkoxy, or --C(O)OR5 where R5 is as previously defined; and Z is a bond, 2,5-thienyl or 2,5-furanyl; or a pharmaceutically acceptable salt thereof. These compounds are useful in treating inflammation, autoimmune disease or allograft rejection in mammals.
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