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 that fulfills the requirement: The molecule is a pde4 inhibitor and copd treatment, and it impacts asthma treatment.
user
CCc1nc2c(cnn2CC)c(NC2CCOCC2)c1C(=O)NCc1ccc(OC)cc1
assistant