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 jak inhibitor.
user
CC(C)(C)OC(=O)N1CCCC(Nc2cc(C#N)nc(-c3cnc4ccc(F)cn34)n2)C1
assistant