You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: The molecule is a jak inhibitor.
user
CC(OC(=O)N1CCC(C#N)C(n2cc(C(N)=O)c(Nc3ccc(F)cc3)n2)C1)C(F)(F)F
assistant