You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is anti viral.
user
CNc1ncnc2c1ncn2C1OC(COP(=O)(NC(C)C(=O)OC)Oc2ccccc2)C(O)C1(C)F
assistant