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 phosphodiesterase inhibitor.
user
CC(C)(C)OC(=O)N(c1ccc(COC(=O)CC(=O)OC(Cc2c(Cl)c[n+]([O-])cc2Cl)c2ccc(OC(F)F)c(OCC3CC3)c2)cc1OCC1CC1)S(C)(=O)=O
assistant