You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): The molecule is a btk inhibitor and belongs to the anti cancer class of molecules.
user
CC#CC(=O)N1CCCC1c1nc(-c2ccc(OCc3ccccc3)nc2)c2c(N)nccn12
assistant