You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a dppiv inhibitor.
user
CC1(NCC(=O)N2CC(F)CC2C#N)CCC2(Cc3noc(-c4ccc(F)cc4)n3)CC21C
assistant