You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is both a copd treatment and a pde4 inhibitor. Use the above information to create a molecule.
user
CCn1ncc2c(NC3CCOCC3)c(CNC(=O)C3CCN(C(C)=O)CC3)cnc21
assistant