This invention relates to a method of treating B cell malignancies, which involves administering to a subject a compound having a structure of formula (I) to cause cell death of a B cell malignancy, thereby treating the B cell malignancy in the subject. Also disclosed are a method of causing cell death of malignant B cells, pharmaceutical compositions and therapeutic systems comprising a compound having a structure of formula (I), and a compound having a structure of formula (I).
