You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a dppiv inhibitor. Please write the SMILES representation of it.
user
CC#CCn1c(N2CCCC(N)C2)nc2c(=O)n(CC(=O)O)n(Cc3ncccc3C#N)c(=O)c21
assistant