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 that fulfills the requirement: The molecule is a pde4 inhibitor that impacts copd treatment.
user
COc1ccc(C(Cc2c(Cl)c[n+]([O-])cc2Cl)OC(=O)c2ccc(CNC(C(=O)OC3CCN(C)C3)c3ccccc3F)s2)cc1OC
assistant