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: It belongs to the anti viral class of molecules.
user
COC(=O)C(OC(=O)OCOc1c2n(ccc1=O)N(C1c3ccccc3SCc3c1ccc(F)c3F)C1COCCN1C2=O)c1ccccc1
assistant