You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is a nampt inhibitor and is cancer treatment.
user
O=C(NCCn1cccn1)c1ccc2nc(-c3ccc(F)cc3)c(-c3ccc(F)cc3)nc2c1
assistant