You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a dppiv inhibitor. Please represent the molecule in SMILES.
user
CC(CN1CC2CC1C(=O)N2C(C)c1ccc(-c2nn[nH]n2)cc1)C(=O)N1C(C#N)CC2CC21
assistant