FIELD: medicine, pharmaceutics.SUBSTANCE: invention refers to compounds of the structural formula Iwhich can be used for treating and/or preventing malaria caused by Plasmodium falciparum. In formula I: X means CH or N, Rmeans -NO, -N(CH)or -NCH(CHCHOH) and Rmeans hydrogen, methyl, ethyl, n-propyl, isopropyl, tert-butyl, cyanogroup, halogen, methoxygroup, ethoxygroup, n-propoxygroup, isopropoxygroup, trifluoromethyl, difluoromethoxygroup, methylsulphonyl, acetyl or acetylaminogroup； or X means CH, Rmeans hydrogen and Rmeans ethyl, isopropyl, tert-butyl, ethoxygroup, n-propoxygroup, isopropoxygroup, methylsulphonyl, acetylaminogroup or methoxycarbonyl； or X means CH, Rmeans a cyanogroup and Rmeans ethyl, isopropyl, tert-butyl, ethoxygroup, n-propoxygroup, isopropoxygroup, trifluoromethyl, difluoromethoxygroup, trifluoromethoxygroup, methylsulphonyl or acetylaminogroup； or X means CH, Rmeans chlorine and Rmeans ethyl, isopropyl, tert-butyl, ethoxygroup, n-propoxygroup, isopropoxygroup, difluoromethoxygroup, methylsulphonyl or acetylaminogroup； or X means CH, Rmeans a methoxygroup or isopropoxygroup and Rmeans trifluoromethyl； or X means CH, Rmeans methylsulphonyl or ethylsulphonyl and Rmeans trifluoromethyl, ethyl, isopropyl, tert-butyl, ethoxygroup, n-propoxygroup, isopropoxygroup or difluoromethoxygroup.EFFECT: invention refers to a pharmaceutical composition containing the above compounds, and to using the compounds for preparing the pharmaceutical composition.22 cl, 2 tbl, 73 exИзобретение относится к соединениям структурной формулы I, которые могут быть использованы для лечения и/или предупреждения малярии, вызванной Plasmodium falciparum. В формуле I: X обозначает СН или N, Rобозначает -NO, -N(CH)или -NCH(CHCHOH) и Rобозначает водород, метил, этил, н-пропил, изопропил, трет-бутил, цианогруппу, галоген, метоксигруппу, этоксигруппу, н-пропоксигруппу, изопропоксигруппу, трифторметил, дифторметоксигруппу, метилсульфонил, ацетил или ацетиламиногруппу； или X обозна
