The present invention relates to novel 5′-substituted nucleoside compounds, pharmaceutical compositions comprising the compounds, and methods of using the compounds to treat cancer, more particularly for the treatment of cancer, in particular glioblastomas, melanoma, sarcomas, gastric cancer, pancreatic cancer, cholangiocarcinoma, bladder cancer, breast cancer, non-small cell lung cancer, leukemias including acute myeloid leukemia, and lymphomas.