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 pde4 inhibitor.
user
CC(C)(c1cc(-c2cccc(COc3ccccc3C(=O)C=Cc3ccccc3)c2)c2ncccc2c1)S(C)(=O)=O
assistant