You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a jak inhibitor and is cancer treatment.
user
Cn1cc(-c2cc3nccn3c(-c3cnn(C4(CC#N)CN(CC(F)(F)F)C4)c3)n2)cn1
assistant