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
COC(=O)CC(NC(=O)OC(C)(C)C)C1CC2CCC(C1)N2C(=O)c1cc(F)c(F)cc1F
assistant