1,4-Anhydro-2,3-O-isopropylidene-5-O-t-butyldiphenylsilyl-4-thio-D-ribitol is a purine nucleoside analog. Purine nucleoside analogs have broad antitumor activity targeting indolent lymphoid malignancies. Anticancer mechanisms in this process rely on inhibition of DNA synthesis, induction of apoptosis, etc[1].
References
[1] Robak T, Robak P. Purine nucleoside analogs in the treatment of rarer chronic lymphoid leukemias. Curr Pharm Des. 2012;18(23):3373-88. DOI:10.2174/138161212801227005