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 btk inhibitor.
user
C=CC(=O)Nc1cccc(Nc2ccncc2N(N=O)c2ccc(Oc3cccc(F)c3)c(F)c2)c1
assistant