FIELD: organic chemistry, pharmacy. SUBSTANCE: invention describes the novel derivatives of 3'-aziridino-anthracycline of the general formula (1) 
where R1 means hydrogen atom or methoxy-group; R2 means hydrogen atom, hydroxyl-group or acylhydroxy-residue of the formula (2): O-COR5 where R5 means pyridyl; R3 and R4 both mean hydrogen atom or one of R3 and R4 means hydrogen atom and another means hydroxyl-group, iodine or group of the formula -OSO2CH2 or their pharmaceutically acceptable salts showing antitumor activity. Invention describes also method of their synthesis and pharmaceutical composition based on compounds of the formula (1). EFFECT: improved method of synthesis. 8 cl, 4 tbl, 6 ex
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