FIELD: medicine, pharmaceutics.
SUBSTANCE: invention refers to medicine, namely oncology, and may be used for treating ovarian cancer. That is ensured by introducing an effective amount of the composition containing a compound of formula 
or its pharmaceutically acceptable salt.
EFFECT: introducing the given compound inhibiting poly-ADP-ribose polymerase lead to disordered cycle of ovarian cancer cells of various lines and their apoptosis that enables effective treatment of cancer of localisation stated above.
13 cl, 3 tbl, 7 ex, 18 dwg
