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
NC(=O)c1ncc(N2CCCC(N3CCNC3=O)C2)nc1Nc1ccc(C2CCN(C3CCCC3)CC2)cc1
assistant