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.
user
COc1cccc(Oc2ccc(-c3nc(C4CCN(C(C)=O)C4)n4c(OC(C)C)cncc34)cc2)c1F
assistant