The present invention discloses compounds according to formula (I), where Q is S, N, or O X is optional, and can be O=, S=, =N-NH2, =N-OH, or -OH Y is optional and can be -N(H)-, O, or C1 to C20 hydrocarbon and R1 and R2 are each independently substituted or unsubstituted single-, fused- or multiple-ring aryl or (hetero)cyclic ring systems. Methods of making these compounds, pharmaceutical compositions containing the compounds, and their use, particularly for treating or preventing cancer, are also disclosed.
