You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: The molecule is a dppiv inhibitor.
user
CC(C)(C)NC(=O)c1cccnc1C(Cc1cc(F)c(F)cc1F)C(O)CNC(=O)OCc1ccccc1
assistant