You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is anti viral and anti tumor.
user
COC1C(COP(=O)(O)SCCOC(=O)C(C)(C)C)OC(n2cnc3c(N)ncnc32)C1OP(=O)(O)OCC1OC(n2cnc3c(N)ncnc32)C(OP(=O)(O)OCC23CCCOC2C(O)C(n2cnc4c(N)ncnc42)O3)C1O
assistant