You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is both a pde2 inhibitor and a cns disorder treatment.
user
CC(C)(C)C(NC(=O)c1cc(=O)[nH]c(-c2ccccc2)n1)c1ccc(C2CC2)c(F)c1
assistant