You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a phosphodiesterase inhibitor.
user
CC(C)(C)OC(=O)Oc1ccc(N(CC2CC2)S(C)(=O)=O)cc1C(=O)OCC(=O)OCc1ccccc1
assistant