You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a btk inhibitor. Use the above information to create a molecule.
user
CC(C)(O)CC(=O)N1CCCC(C2=C3C=NC=C[N+]3(N)C(c3ccc(C(=O)Nc4cc(C(F)(F)F)ccn4)cc3)=N2)C1
assistant