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 based on this description: The molecule is a btk inhibitor.
user
C=CC(=O)NNC(=O)C=C1CCC(n2nc(-c3ccc(CNC(=O)c4cc(OC)ccc4F)cc3)c3c(N)ncnc32)CC1
assistant