You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is anti viral.
user
COC1C(O)C(COP2(=O)OCCC(c3ccncc3)O2)OC1n1cnc2c(N)ncnc21
assistant