You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a phosphodiesterase inhibitor.
user
CCc1nn(CC(C)(C)COC(=O)c2ccccc2Cl)c2c1C(=O)NCCCOCCC2
assistant