FIELD: synthesis of biologically active compounds. SUBSTANCE: invention provides novel compounds with general formula I: 
, wherein Ra is hydrogen atom, hydroxyl or C1-C4- alkoxyacetoxy radical; Rb hydrogen atom; Z is hydrogen or radical of general formula II: 
in which R1 is benzoyl or C1-C8-alkoxycarbonyl, R3 phenyl, R4 phenyl and R5 linear or branched C1-C8-alkyl. Compounds show antitumor and antileukemia properties. EFFECT: extended choice of antitumor and antileukemia preparations. 6 cl, 1 tbl, 3 ex
