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 hiv protease inhibitor. Please write the SMILES representation of it.
user
CSc1ncc2c(n1)N1CCCC1CN(c1cccc3cccnc13)C2=O
assistant