You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is a btk inhibitor.
user
C=CC(=O)N1CCCC1C1=C2C=NC=C[N+]2(C)C(c2ccc(C(=O)Nc3cc(C)ccn3)cc2)=N1
assistant