You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: The molecule is a pde4 inhibitor.
user
COc1ccc(-c2nc(C(=O)NCc3cccc(C(=O)N4CCC(O)C4)c3)c(C(C)N)o2)c2ccc(C(F)(F)F)nc12
assistant