You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a cathepsin s inhibitor and belongs to the autoimmune disease treatment class of molecules. Use the above information to create a molecule.
user
CCN1CCC(c2ccc(C(F)(F)C3CC(C(=O)NC4(C#N)CC4)N(C(=O)C4(C(F)(F)F)CC4)C3)c(C(F)(F)F)c2)CC1.Cl
assistant