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 phosphodiesterase inhibitor, a inflammatory disease treatment, and a pde4 inhibitor, it impacts asthma treatment and is anti inflammatory.
user
CCn1ncc2c(NC3CCOCC3)c(C(=O)NC(C)CN3CCN(C)CC3)cnc21.O=CO
assistant