You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a hcv protease inhibitor. Please write the SMILES representation of it.
user
CCCNC(=O)C(=O)C(CC1CC1)NC(=O)C1C2C(CN1C(=O)C(NC(=O)NC1(C3CCCS3(=O)=O)CCCCC1)C1CCCCC1)C2(C)C
assistant