You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a btk inhibitor. Please represent the molecule in SMILES.
user
CN1CC(CO)C2(CCCN(c3ncc(C(N)=O)c4[nH]c5ccccc5c34)C2)C1=O
assistant