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
CCn1nc(CC(C)(C)COC(=O)c2ccc(S(=O)(=O)CC)cc2)c2c1C(=O)NCCCOCCC2
assistant