| abstract |
FIELD: chemistry. n SUBSTANCE: invention relates to compounds of formula , where X represents a halogen atom, a hydroxyl group or a sulphamoyloxy group, which is substituted with two alkyl groups containing 1-10 carbon atoms; and Y represents -C(=O)R, where R represents a straight, branched or cyclic alkoxy group containing 1-10 carbon atoms, which can be substituted with an aryl group containing 6-10 carbon atoms; a pyrrolidino group or an amino group, which can be substituted with one or two alkyl groups containing 1-10 carbon atoms, which can be substituted with an aryl group containing 6-10 carbon atoms. The invention also relates to methods of obtaining special cases of compounds of formula (I), methods of producing compounds of formulae n and n from compounds of formula (I), to intermediate compounds of formulae n , and for producing compounds of formula (I). n EFFECT: derivatives as intermediate compounds for producing 6-fluoro-3-hydroxy-2-pyrazine carboxamide, which is suitable for treating and preventing influenza virus. n 15 cl, 54 ex |