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
CN1CCCCC1c1nc(-c2ccc(C(=O)Nc3cc(I)ccn3)cc2)c(C(=O)O)n1N
assistant