You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a pde4 inhibitor that impacts asthma treatment. Please write the SMILES representation of it.
user
CC(C)(O)c1ccc(C(Cc2ccc[n+]([O-])c2)c2ccc(OC(F)F)c(OC(F)F)c2)cc1
assistant