You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a btk inhibitor. Please write the SMILES representation of it.
user
C=CC(=O)Nc1cccc(Nc2ncnc3[nH]c(-c4cnn(CCN5CCOCC5)c4)cc23)c1
assistant