a new class of anthracycline derivatives carrying a halogen atom in the 4 ' position of the aminosugar moiety was tested in cytotoxicity studies on hela cells and on p388 cell lines sensitive and resistant ( p388/dx ) to doxorubicin , in comparison with the parent drugs doxorubicin ( dx ) and daunorubicin ( dnr ) .
C0013089
doxorubicin
C0011015
daunorubicin