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, hcv inhibitor, ns5a inhibitor, anti viral compound and belongs to the hcv treatment class of molecules. Please represent the molecule in SMILES.
user
CC(C)C(=O)C(C)(C)n1ncnn1
assistant