FIELD: chemistry.
SUBSTANCE: invention relates to N, N′-substituted piperazines of formula I and a method of producing compounds of formula II. Said compounds affect hemostasis system and exhibit antiplatelet, anticoagulant and vasodilatory properties. In general formula (I) R1 - linear or branched alkyl C1-C4, R2 - linear or branched alkyl C5-C12, G - mineral or organic C1-C4 acid or water, in general formula II R1 - linear or branched alkyl C1-C4, R2 - linear or branched alkyl C1-C12, G - mineral or organic C1-C4 acid or water. 
EFFECT: disclosed method enables to obtain compounds of formula II with purity of over 99 % and content of individual impurities not more than 1/10 % and sum of impurities of not more than 5/10 %.
11 cl, 2 dwg, 6 tbl, 13 ex
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