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
OC1=C(O)N=C(c2ccc(F)cc2)N(C2CCC2)C1
assistant