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 cancer treatment and a parp inhibitor.
user
COc1cccc2c(=O)[nH]c(-c3cnc(N4CCN(C(=O)C5CC5)CC4)nc3)cc12
assistant