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
CCOC(=O)c1ccc(Oc2ccnc3c2c(C2=CCCN(C(=O)OC(C)(C)C)C2)nn3Cc2ccc(OC)cc2)cc1
assistant