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 a phosphodiesterase inhibitor. Use the above information to create a molecule.
user
Cc1cc(C(=O)NCc2cccc([N+](=O)[O-])c2)c(NC(=O)C2CCCCC2)s1.O=C(O)O
assistant