You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a btk inhibitor.
user
Cc1c(CNC(=O)c2cn(C(C)(C)C)nn2)ccc(-c2ccncc2OCC2CCCN2)c1F
assistant