You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is a btk inhibitor.
user
O=C1c2c(F)cc(C3CC3)cc2OCCN1c1cccc(-c2ccnc3[nH]c(C4=CCN(C5COC5)CC4)cc23)c1CO
assistant