You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a anti viral. Please represent the molecule in SMILES.
user
CC1Cn2ncc(N3CC(N4CCOCC4=O)CC3=O)c2CN1C(=O)OC(C)(C)C
assistant