You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a phosphodiesterase inhibitor. Use the above information to create a molecule.
user
COc1cc2c(cc1OC)CN(CC(=O)OC(Cc1c(Cl)c[n+]([O-])cc1Cl)c1ccc(OC(F)F)c(OCC3CC3)c1)CC2
assistant