You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a pde4 inhibitor and is asthma treatment. Please represent the molecule in SMILES.
user
CC(Cc1cc(-c2cccc(-c3ccc(CC(C)(C)C(=O)O)cc3)c2)c2ncccc2c1)S(C)(=O)=O
assistant