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 caspase inhibitor. Use the above information to create a molecule.
user
CC(C)C(=O)C1CCCN2C(=O)CCC(N(C)C(=O)c3ccccc3)C(=O)N12
assistant