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
NC(=O)c1nccn(C2OC(COP(=O)(OCc3ccccc3)OCc3ccccc3)C(O)C2O)c1=O
assistant