You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: The molecule is a pde1 inhibitor and is cancer treatment.
user
Cc1nnc2n1-c1nn(Cc3ccc(-c4cccc(F)n4)cc3)c(Nc3ccccc3)c1C1OC1N2C
assistant