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 a pde1 inhibitor.
user
C=C1c2c(nn(Cc3ccc(-c4ccccc4)cc3)c2Cc2ccccc2)N2CC(C)(N)N=C2N1C
assistant