You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is both a protease inhibitor and a cysteine protease inhibitor.
user
CC(CCNC(=O)c1ccnc(-n2ccnc2)c1)CC(=O)NCC#N
assistant