You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Can you create a molecule that matches the given characteristics? The molecule is a phosphodiesterase inhibitor.
user
COc1ccc(CNc2nnc(N3CCC(O)C(O)C3)c3ccc(C#N)cc23)cc1Cl
assistant