You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a raf kinase inhibitor and is cancer treatment. Use the above information to create a molecule.
user
Nc1ccc(-c2ccnc3c(-c4ccc(F)c5[nH]ncc45)c(-c4ccncc4)nn23)cc1
assistant