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
CC(C)(C)OC(=O)N1CCCC1c1nc(-c2ccc(C(=O)Nc3ccccn3)cc2)c(C(=O)O)n1N
assistant