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, a tyrosine kinase inhibitor, and cancer treatment.
user
CN1CCN(C(C)(C)C=C(C#N)C(=O)N2CCCC2Cn2nc(-c3ccc(Oc4ccccc4)cc3F)c3c(N)nccc32)CC1=O
assistant