You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a hiv protease inhibitor.
user
COC(=O)N1CCN(C(=O)c2ccnc(CN3C(=O)C(CCC(C)C)(c4ccccc4)N=C3N)c2)CC1
assistant