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
CCC(CC)COC(=O)C(C)NP(=O)(OCC1OC(C)(c2ccc3c(N)ncnn23)C(OC(C)=O)C1OC(C)=O)Oc1cccc2ccccc12
assistant