FIELD: chemistry.
SUBSTANCE: invention relates to a compound of formula 
or a pharmaceutically acceptable salt thereof, in which R1 denotes hydrogen or C1-6alkyl; R2 denotes isooxazolyl group, substituted with C1-6alkyl; RB denotes -CF3, -CHF2, -CH2F, or C1-6alkyl. The invention also relates to pharmaceutical compositions for treating cancer which contain the disclosed compounds.
EFFECT: obtaining novel compounds and a pharmaceutical compositions based on said compounds, which can be used in medicine for treating cancerous diseases.
15 cl, 77 dwg, 10 tbl, 13 ex
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