Patent ID: 7718672

Claim:
A method for treating glioma/glioblastoma comprising administering to a subject a composition comprising a therapeutically effective amount of a compound according to formula (I) wherein, R 1 and R 4 are hydrogen; R 2 and R 3 are hydroxyl; R 5 , R 6 , and R 7 are independently hydrogen or alkyl; R 8 is hydrogen, alkyl, aryl, or arylalkyl; R 9 is R 10 is hydrogen; and R 11 , and R 12 and R 13 are independently hydrogen, hydroxyl, halide, alkyl, arylalkyl, alkenyl, arylalkenyl, alkoxy, aryloxy, amino, alkylamino, dialkylamino, arylamino, aryl, or cyclohexyl.