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
NC(=O)c1nnc2c(-c3ccc4nc(-c5cn6ccccc6n5)[nH]c4c3)cccc2c1N
assistant