You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a dppiv inhibitor.
user
Cc1cc(C(C)N2C(=O)C3CC2CN3CC(N)C(=O)N2CCCC2C#N)cc(C(F)(F)F)c1
assistant