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(C)(C)OC(=O)NC1CCCN(c2c(C#N)c3nc[nH]c(=O)c3n2Cc2ccccc2)C1
assistant